Genre: Documentary, History, Science
Premise: A camera crew descends hundreds of feet below the streets of major cities -- such as New York, Cairo, London and Tokyo -- to explore the layered remnants of civilizations left buried deep under modern metropolitan centers.
S03, E05 (First Aired: Nov. 24, 2008)
Host Don Wildman explores the trench systems and fortifications that made World War I one of the most brutal wars in history and helped shape Nazi Germany's Adolf Hitler.
S01, E03 (First Aired: Apr. 30, 2007)
Exploring Nazi Germany's World War II bunkers beneath the streets of Berlin.