SEZON: 2
ÖZET
Hidden tunnels that saw a city prosper; a sunken wreck with a remarkable past; a concrete wartime dome; a mysterious Cold War building. Now they lie disused, contaminated, and dangerous. But who built them? And why were they abandoned?
- Tom WardSelf - Narrator
- Dominic SelwoodSelf - Historian & Author
- Rob BellSelf - Engineer & Adventurer
- James S. CorumSelf - Military Historian
- James MeigsSelf - Author and Journalist
- Andrew GoughSelf - Historian & Author
- Lynette NusbacherSelf - Military Historian
- Sascha AuerbachSelf - Historian