It's History
Abandoned Underground Concourses of Philadelphia (8x18)
Udgivelsesdato: Aug 19, 2021
Deep below the streets of Philadelphia is a labyrinth of hidden tunnels and corridors developed over nearly a century ago. What few people realise, is that some sections of tunnel have been abandoned through out their entire history!
- Premieret: Nov 2014
- Afsnit: 480
- Følgere: 2