The Roman Cisternone (also known as the Castellone Cisternone) is one of Italy's

Added: 2026-05-24

[00:00:00]Tucked away in Italy, this unassuming building hides one of the world's largest and best preserved Roman cisterns.

[00:00:07]Built over 2,000 years ago to supply water to a bustling Roman city, its interior is so grand it's nicknamed the water cathedral.

[00:00:17]>> [music] >> Its walls are coated in a special Roman mortar that made it watertight, capable of holding 7 million liters of water.

[00:00:24]Over the centuries, it served many purposes, even acting as a bomb shelter for hundreds of residents during World War II.

[00:00:32]Today, after careful restoration, it's a museum and cultural hub hosting concerts [music] and exhibitions in its extraordinary space.

[00:00:40]Journey back in time where ancient engineering meet modern artistry.