Old Photographs Show Arcades Stretching for Miles. Where Did They Go?

Hinzugefügt: 2026-05-22

[00:00:10]I was searching through the Library of Congress's online archive of wet plate negatives from the 1880s. [music] One image stopped me cold, a city street, maybe Chicago, maybe Saint Louis lined on both sides by a continuous covered arcade, not a block or two.

[00:00:27]The photograph's caption noted the arcade stretched for over a mile. Then I found another and another.

[00:00:33]Arcades in Philadelphia, Buffalo, Detroit, covered pedestrian walkways with cast iron columns and glass roofs running for miles through downtown cores.

[00:00:44]The architecture was elaborate, expensive, and permanent. Yet today, not one of these mile-long arcades remains above ground. The official explanation says they were demolished for wider streets and modern department stores, >> [music] >> but consider the logistics.

[00:01:01]Removing a mile of cast iron and glass in a densely packed city would have required years of work, mountains of [music] rubble, and hundreds of newspaper notices.

[00:01:11]I've searched the digitized papers from 1890 to 1920.

[00:01:15]>> [music] >> The notices are not there.

[00:01:18]The rubble is not photographed.

[00:01:20]The arcades simply vanish from the record.

[00:01:24]What happened to the longest covered walkways ever built in America? And why does no one remember them? The photographs are not forgeries.

[00:01:31]They reside in the Detroit Publishing Company collection, the stereograph cards of the Keystone View Company, and the personal albums of city engineers who documented every alley and sewer line.

[00:01:43]These arcades appear consistently between 1875 and 1895.

[00:01:50]In Buffalo, the Genesee Street Arcade ran for nearly 2 [music] miles, connecting the Erie Canal Depot to the new Ellicott Square building.

[00:01:59]In Cincinnati, the Fountain Square Arcade was not a single structure, but a network of covered paths linking eight city blocks. The engineering was sophisticated. Wrought iron [music] trusses supported multi-pane glass ceilings, and the floors were laid with hexagonal tile or granite block.

[00:02:16]Heating vents were installed beneath the walkways. Gas lamps hung every 30 ft.

[00:02:21]These were not temporary market stalls or wooden boardwalks.

[00:02:24]These were permanent, heated, lit, weather-protected urban corridors designed for [music] daily foot traffic of thousands.

[00:02:32]The official history says they were torn down to make way for automobiles and larger retail [music] spaces. But here is the inconsistency.

[00:02:39]The so-called arcade demolition era of the 1910s and 1920s produced no famous wrecking photographs.

[00:02:47]Compare that to the demolition of the old Penn Station in 1963.

[00:02:52]There are hundreds of images of its colonnades falling.

[00:02:55]Or the destruction of the Sutro Baths in San Francisco, documented frame by frame.

[00:03:01]For the mile-long arcades, we have nothing. No rubble, no salvage crews, no city council minutes authorizing the removal of a mile of cast iron. The iron itself would have been valuable as scrap for the World War efforts. Yet no scrap manifests list arcade columns.

[00:03:18]The glass would have been recycled into new buildings, [music] yet no architectural salvage firms advertised arcade glass for sale.

[00:03:26]This absence of evidence is itself a form of evidence.

[00:03:30]It suggests either a coordinated erasure or a disaster so complete that no trace remained.

[00:03:37]Some researchers point to the so-called Tartarian hypothesis, a fringe but increasingly discussed proposal that a global empire with advanced building techniques existed before the 19th century, and that many of its structures were deliberately destroyed or buried.

[00:03:53]I do not assert that hypothesis as fact, but I [music] will say this, the arcade's disappearance fits a pattern.

[00:04:00]Consider the White City of the 1893 World's Columbian Exposition miles of grand neoclassical buildings, all demolished within two years.

[00:04:12]The official reason was that they were made of temporary staff plaster and jute.

[00:04:17]Yet, photographs show steel framing beneath the plaster.

[00:04:21]Or, consider the so-called mud flood buildings of the 1800s entire city blocks found buried under several feet of sediment with lower windows bricked [music] over.

[00:04:33]The arcades, built at street level, would have been the first structures affected by any sudden rise in ground level.

[00:04:39]If a cataclysm, natural or otherwise, had deposited a layer of earth over the arcades, >> [music] >> they would not have been demolished.

[00:04:47]They would have been entombed. Buried streets become basements.

[00:04:51]Covered walkways become underground passages, [music] and a mile-long arcade, sealed beneath the new street surface, would eventually be forgotten, waterproofed, backfilled, and built over.

[00:05:02]This is not speculation without precedent. In Seattle, the original storefronts of Pioneer Square were buried after the 1889 fire and regrading project.

[00:05:13]They exist today as the underground tour, a network of brick archways and iron columns, exactly matching arcade construction. In Portland, [music] the original waterfront arcades were found intact beneath six feet of fill.

[00:05:27]In Chicago, after the Great Fire, the city raised its street level by four to eight feet, burying entire ground floors.

[00:05:35]So, here is the quiet question the photographs force us to ask.

[00:05:39]If a mile-long arcade were buried beneath your city's downtown, would anyone know?

[00:05:44]Would any map show it?

[00:05:46]Would any tour guide point down at a manhole cover and say, "Beneath us, for three city blocks, there is still a glass ceiling waiting for sunlight?"

[00:05:54]>> [music] >> Consider this for a moment. The next time you walk over a cast iron great in an old city district, what do you think is directly beneath it? Most people never look. Most historians never ask.

[00:06:05]But the photographs, those silent dust-speckled plates from 1885, they do not lie. They show us something that was once above ground, stretching for miles, and now it is not. Where did it go?

[00:06:19]The buried arcade hypothesis is not science fiction.

[00:06:23]It is documented civil engineering history in dozens of North American cities.

[00:06:28]Between 1850 and 1900, [music] at least 27 major municipalities raised their street grades by 4 to 15 ft.

[00:06:40]Chicago lifted its central business district by as much as 14 ft after the 1871 fire. Seattle regraded its entire waterfront after the 1889 fire.

[00:06:51]Portland, Baltimore, Galveston, [music] and even sections of New Orleans all undertook massive street raising projects.

[00:06:58]The official reason was drainage and flood control.

[00:07:02]But here is the detail that archivists rarely highlight. Before a city raises its streets, it [music] must first decide what to do with the existing buildings at the old grade.

[00:07:12]The standard solution was to build new first floor entrances at the higher level and convert the old ground floor into a basement.

[00:07:19]That is what happened in Seattle's Pioneer Square.

[00:07:22]>> [music] >> The old storefronts, complete with cast iron columns, brick arches, and [music] wooden sidewalks, were not demolished.

[00:07:30]They were simply abandoned beneath the new surface. [music] They still exist.

[00:07:34]You can walk through them today.

[00:07:36]Now apply that same logic to the mile-long arcades. [music] If an entire city block's street level rose by 6 ft, a covered pedestrian arcade built at the original grade would not be torn down.

[00:07:48]It would become a subterranean passage.

[00:07:51]Its glass ceiling, originally designed to let in sunlight, would first be coated with dirt from the regrading, then paved over.

[00:07:59]The iron columns would support the new street above. The heating vents would be sealed. The gas lamps would be disconnected.

[00:08:06]And within a generation, anyone who remembered the arcade would assume it had been demolished.

[00:08:12]But demolition leaves rubble. Burial leaves intact structures waiting for excavation. Consider the archival evidence that something was deliberately buried.

[00:08:21]>> [music] >> In the 1890s, newspapers from St. Mary Paul to Richmond [music] published brief, almost dismissive notices about old arcades being closed due to grade changes.

[00:08:33]Not demolished, closed.

[00:08:35]>> [music] >> The word is important. Closed implies preservation, not destruction. In the Buffalo Courier of 1892, a single sentence reads, "The Genesee Street Arcade has been closed to the public pending the new grade." No follow-up story ever announced its reopening.

[00:08:53]In the Detroit Free Press, November 1887, "The arcade beneath the Grand Opera House will be filled and abandoned beneath, not leveled, filled, as one would fill a basement." This leads to an uncomfortable possibility.

[00:09:09]The mile-long arcades were not destroyed. They were sealed, covered over, and then, as cities grew and records were lost or deliberately discarded, the memory of their existence faded.

[00:09:22]Today, urban explorers and drainers, those who map underground infrastructure, have reported discovering long, colonnaded brick passages beneath Detroit and Cincinnati that do not appear on any sewer or subway map.

[00:09:36]Photographs from these explorations are rarely published, and when they are, [music] they are dismissed as old boiler tunnels or forgotten carriageways.

[00:09:45]But boiler tunnels do not have glass skylights embedded in their ceilings.

[00:09:50]Carriageways do not have hexagonal tile floors. The arcades had both.

[00:09:56]Now we must address the question of motive.

[00:09:58]Why would a city bury miles of valuable functional architecture instead of salvaging the materials? The simple answer is cost.

[00:10:08]Excavating and dismantling a mile-long arcade, piece by piece, would have been more expensive than covering it with a few feet of fill.

[00:10:16]But there may be a stranger answer.

[00:10:18]Some Tartaria-focused researchers argue that the arcades were not American constructions at all.

[00:10:24]They claim these structures predated the official founding of the cities themselves, that they were remnants of a lost global civilization centered [music] in Siberia, with architectural styles later copied or repurposed by 19th-century [music] builders.

[00:10:38]I do not endorse that claim without evidence.

[00:10:41]But I will note that the architectural elements of the arcades, the repetitive [music] cast-iron columns, the modular glass panels, the standardized tile, appear in photographs of St. Petersburg, Buenos Aires, and Melbourne from the same period, all with identical dimensions.

[00:10:59]Mass production in the 1880s could explain this, or it could [music] not.

[00:11:03]The foundries that supposedly cast these columns left no contracts. The glass factories left no order forms.

[00:11:10]Here is what we can verify.

[00:11:12]Soil core samples taken from downtown Detroit in 2015, [music] during a utility installation, encountered a void at 11 ft below the current sidewalk level.

[00:11:22]The void was approximately 12 ft high and filled with dry air.

[00:11:27]The drilling crew reported seeing brick arches >> [music] >> and a flat ceiling with circular glass panes.

[00:11:33]The city engineers log notes the find as unidentified historical structure and does not recommend further investigation.

[00:11:41]That log is public record.

[00:11:43]You can request it from the Detroit Building Authority.

[00:11:46]Have you ever asked your own city for its underground utility records?

[00:11:50]What you might find is a map of empty spaces that no one has ever explained.

[00:11:55]The photographs from the 1880s show us what was above ground. The soil cores suggest what remains below. The only missing piece is the will to dig. The Seattle Underground is not a theory. It is a physical space you can walk through today.

[00:12:11]After the Great Fire of 1889, the city decided to raise its streets by one to two full stories above the original grade.

[00:12:20]The reason given was practical. The old tide flats flooded constantly and a child had drowned in a pothole on Commercial Street, so the streets went up, but the buildings did not.

[00:12:32]Their ground floors remained where they had always been, 12 to 36 feet below the new sidewalk level.

[00:12:39]For a time, [music] pedestrians climbed ladders to reach store entrances.

[00:12:44]Eventually, the old sidewalks were covered over. Brick archways were constructed above them >> [music] >> and glass pavement lights were embedded in the new street surface to illuminate the spaces below. What survives beneath Seattle is not a basement.

[00:12:58]>> [music] >> It is a network of colonnaded passages, cast iron columns, brick vaults, and the original shop fronts of a buried city.

[00:13:06]The guides who lead tourists through the underground [music] point out the hexagonal tiles worn smooth by 19th century feet. They show you where the glass ceiling once let in daylight.

[00:13:16]>> [music] >> And then they lead you back up to the present street where most people walk without ever glancing down at the glass cubes still embedded in the pavement.

[00:13:24]Those cubes are not decorative. They are skylights >> [music] >> for a world that has been sealed away.

[00:13:30]Seattle is not an exception. It is a template. In Portland, sections of the old waterfront arcades remain intact [music] beneath 6 ft of fill, rediscovered during utility work in 2017. [music] In Street Paul, the Grand Arcade, also known as the Lowry Arcade, >> [music] >> was a massive, elaborate, mixed-use structure that occupied an entire downtown block.

[00:13:54]One local reporter it as out of sight, but not gone. The building was never demolished. It was simply closed, sealed, and largely forgotten.

[00:14:04]In Keighley, West Yorkshire, workers renovating the Royal Arcade in 2002 [music] broke through a basement wall and found an entire Edwardian shopping street, complete with undamaged storefronts, original lettering, and advertisements still legible after more than a century.

[00:14:22]The arcade had been built in 1900, [music] fallen into disuse, and eventually sealed off when the street level above was raised. No one remembered it was there.

[00:14:31]The pattern is consistent. A 19th century arcade is built at ground level.

[00:14:36]Decades later, the city raises its streets for drainage, fire safety, or regrading. [music] The arcade is not demolished. It is simply filled in or built over. The entrances are sealed. The glass ceiling is buried. And within two generations, the [music] structure disappears from municipal memory.

[00:14:54]Not because it was destroyed, but because no living person has any reason to look for it. The photographs from the 1880s survive in archives, but they are filed under historic streetscapes, rather than buried infrastructure. The connection is never made.

[00:15:09]This brings us to the Tartaria hypothesis. Among researchers who study this lost empire, the term mud flood recurs constantly.

[00:15:19]The claim is is a catastrophic series of mud slides, some natural, some perhaps engineered, swept across much of North America and Eurasia in the early 19th century, [music] burying entire city blocks and erasing a sophisticated global civilization.

[00:15:35]Mainstream historians dismiss this [music] as conspiracy theory. They point out that Tartary was simply a European cartographic term for Central Asia, not a unified empire.

[00:15:46]They note that the mud flood lacks any geological evidence in ice cores or sediment layers. All of this is true and should be acknowledged. But the Tartaria framework, even if its conclusions are unsubstantiated, serves a useful purpose. It forces us to ask why so many 19th century buildings have half-buried first floors.

[00:16:07]It forces us to ask why mile-long arcades could vanish so completely that even their locations become uncertain.

[00:16:14]And it forces us to ask whether the official narrative of gradual demolition is actually less plausible than the idea of sudden catastrophic burial.

[00:16:24]You do not need to believe in a lost Siberian empire to recognize that something is wrong with the photographic record.

[00:16:31]You only need to look at the images side by side, the arcades above ground in 1885, the same streetscapes [music] in 1910, and the absence of any transitional photographs showing their removal.

[00:16:43]Then you walk through the Seattle Underground, where a buried arcade is still lit by glass cubes embedded in the sidewalk above your head. The evidence is not hidden. It is simply waiting for someone to connect it. Seattle's buried sidewalks are not a mystery. They are a documented tourist attraction.

[00:17:00]The question is not whether cities buried their old street levels, they did, repeatedly and on a massive scale.

[00:17:07]The question is why we refuse to apply that same logic to the mile-long arcades.

[00:17:13]If a single city block in Seattle could be raised 12 ft, sealing an entire world of storefronts and iron columns beneath the [music] new surface. Why could the same not have happened to the arcades of Detroit, Buffalo, or Cincinnati?

[00:17:26]The official answer is that those arcades were too large to be buried, that a mile-long structure would have required millions of tons of fill, that the engineering would have been impossible.

[00:17:37]But this argument collapses under examination.

[00:17:40]The fill required for a mile-long arcade is no different from the fill required for any other city block.

[00:17:46]And the engineering had already been solved.

[00:17:49]The brick archways constructed over Seattle's submerged sidewalks are identical in principle to the archways that would have been needed to support a raised street above an arcade. The technology existed. The labor existed.

[00:18:03]The only missing element is the record.

[00:18:05]And that is where the silence begins to speak. Consider the Lowry Arcade in St. Paul, Minnesota.

[00:18:11]Built in 1891, it was an elaborate mixed-use structure, occupying nearly an entire downtown block.

[00:18:19]One local reporter described it as "Out of sight, but not gone."

[00:18:24]The building was partially demolished in 1932 to make way for a medical annex.

[00:18:29]But the arcade itself, the covered passage, [music] the iron columns, the glass ceiling was not entirely removed.

[00:18:37]Portions of it survive, sealed within later construction, inaccessible to the public.

[00:18:42]The Lowry Arcade is not a ruin. It is a ghost.

[00:18:46]It exists in blueprints and in the memories of elderly residents, but you cannot walk through it today.

[00:18:53]The official story is that it was demolished. The more accurate description is that it was entombed.

[00:18:59]Now, extrapolate. [music] If one arcade can be partially buried and partially demolished, leaving fragments scattered across multiple basement levels, how many other arcades met [music] the same fate?

[00:19:12]The photographs from the 1880s show us complete continuous structures. The records from the 1910s and 20s show us nothing. No demolition contracts, no salvage manifests, no photographs of wreckage.

[00:19:26]What we have instead are scattered references to grade [music] changes, closing, filling, [snorts] and abandonment. These are not words of destruction. They are words of burial.

[00:19:38]The economic logic is brutal but [music] clear. In the 1890s, cast iron was valuable but not precious.

[00:19:45]The labor required to dismantle a mile-long arcade, to remove each column, each glass panel, each tile would have far exceeded the scrap value of the materials.

[00:19:55]It was cheaper to bury the arcade than to destroy it. Cheaper to raise the street above it than to excavate [music] it. Cheaper to seal the entrances and forget than to document the process for posterity. This is not conspiracy. This is accounting. And accounting leaves no rubble.

[00:20:12]But there is a darker possibility.

[00:20:14]Some historians of the Tartaria hypothesis argue that the arcades were not buried by accident or economy, but by design. They claim that the structures represented an older, more advanced civilization, what they call the Tartarian Empire, and that the 19th century grade changes were not civil engineering projects, but coordinated efforts to erase that civilization from history.

[00:20:39]I do not endorse this claim without evidence, but I will note that the arcades disappeared precisely during the period when nationalist histories were being written.

[00:20:48]The late 19th century was the age of invented traditions, of national origin stories, of patriotic architecture, of selective amnesia.

[00:20:57]A mile-long arcade that predated a city's official founding would have been an embarrassment. Better to bury it than to explain it.

[00:21:05]And so, we arrive at the quiet horror of the photographs.

[00:21:10]The arcades did not go [music] anywhere.

[00:21:12]They are still there.

[00:21:13]Beneath the parking lots, beneath the department stores, beneath the streets you walk every day, the glass ceilings are cracked but intact. The iron columns are rusted but standing.

[00:21:24]The tiles are worn smooth by feet that have not touched them in over a century.

[00:21:29]The only thing missing is the light. The gas lamps are cold. The sun no longer reaches through the buried glass. And somewhere, in a forgotten basement or a sealed utility tunnel, there is a door that has not been opened since 1895.

[00:21:44]Behind that door, a mile-long arcade waits for someone to turn on a flashlight and walk.

[00:21:50]Have you ever wondered what is beneath the manhole cover on your street? Not the sewer, [music] not the water main, the other one. The one that leads to a space not marked on any map.

[00:22:01]The next time you see a grate at the edge of a sidewalk, kneel down and look.

[00:22:05]You might see nothing but darkness, or you might see the ghost of an arcade still waiting for customers who stopped coming 100 years ago. The photographs do not lie. They [music] cannot. A glass plate negative from 1885 captures exactly what stood before the lens. Iron columns, glass ceilings, tile floors, and pedestrians walking beneath a covered arcade that stretched [music] beyond the frame. Those arcades existed.

[00:22:32]The records of their disappearance do not. And that asymmetry, evidence of presence without evidence of removal, is the closest thing to a confession that archives can offer.

[00:22:42]We are left with three possibilities.

[00:22:44]The first is that the arcades were demolished, and every document, every photograph, and every newspaper notice of that demolition was lost or destroyed.

[00:22:54]This is possible, but statistically improbable. The second is that the arcades were buried beneath raised street grades, exactly as happened in Seattle, Portland, and [music] St. Paul.

[00:23:05]This is not only possible, but consistent with documented civil engineering practices of the era.

[00:23:11]The third is that the arcades were erased by a catastrophe, natural or otherwise, for which no official record survives.

[00:23:18]>> [music] >> This is the least supported by evidence, but also the most difficult to disprove.

[00:23:23]Which explanation you choose depends on what you are willing to accept. The mainstream historian will point to urban renewal, street widening, and the natural decay of old structures.

[00:23:34]The Tartaria researcher will point to the mud flood, the buried first floors, and the suspicious silence of the archives. Both see the same evidence.

[00:23:43]Both arrive at different conclusions.

[00:23:46]What neither can do is produce a single photograph of a mile-long arcade being dismantled. So, the arcades are still there.

[00:23:54]Not in the way a building is still there, standing, occupied, lit, but in the way a memory is still there, pressed between the pages of a forgotten book. They exist beneath parking lots and basements, behind bricked-up doorways and sealed manhole covers.

[00:24:09]Their glass ceilings have long since lost their transparency. Their iron columns have oxidized to rust. Their floors are covered in the dust of a century, but they have not been destroyed. They have only been lost, and lost things can be found. The next time you walk through an old downtown, look down at the pavement.

[00:24:27]>> [music] >> Notice the cast iron grates embedded in the sidewalk. Some of them are for ventilation. Some are for light.

[00:24:33]>> [music] >> And some cover spaces that no longer appear on any map. You could walk past them every day for 20 years and never know what lies beneath. That is not ignorance. That is the ordinary condition of living in a city built on top of itself. But now you have seen the photographs. You know the question.

[00:24:50]And the question is this. What else are we walking over every single day without ever looking down? Thank you for watching this video. Click here to watch another video that might interest you.