Underground Worlds

5:10 AM to 6:00 AM
Saturday 18 January
+

Cincinnati's Secret Caverns

Season 2 Episode 3 of 10

Exploring the forgotten underworld hiding beneath the streets of Cincinnati, USA. Plus, a state-of-the-art Cold War fortress on the shores of Denmark

Underground Worlds airs on U&Eden +1 at 5:10 AM, Saturday 18 January. (Subtitles, audio description.)
Topics
News ➝ Current Affairs
Documentary