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

What "Cities of the Underworld" 10-th episode about

Discover the fascinating and unknown history that lies below major cities around the world today. Explore these layers, which are often hundreds of feet deep. Discover everything form dank dungeons to underground shipwrecks that have been lost for centuries.

Episode number: 10

Episode name: "Freemason Underground"

Episode release date: 26 june 2007 at 01:00

Status: aired