8-th episode of 1-th season "Cities of the Underworld"

What "Cities of the Underworld" 8-th episode about

For thousands of years London has been among the most powerful cities in the world, below the busy streets and marketplaces another city hides--a city of Roman baths, secret crypts, lost rivers and indestructible bunkers that could hold up to 8,000 people.

Episode number: 8

Episode name: "London's Lost Cities"

Episode release date: 12 june 2007 at 01:00

Status: aired