Hidden Beneath the Cities · SEASON 1
Labyrinths and Legends
Episode 5 · 2026-05-08

- Documentary
Episode overview
Explore a labyrinth built beneath Washington, D.C., by an eccentric entomologist. Admire a fresco-filled Roman mausoleum, spot intricate chambers carved into Colombia's volcanic rock, and see a sprawling network of hand-dug tunnels in Liverpool.
45 minutes
Season 1 episodes
1. Underground Cities and Secret Chambers2026-04-24
2. Crystal Cathedrals and Buried Bunkers2026-04-24
3. Hidden Hypogeum and Lost Letters2026-05-01
4. Tunnels and Tombs2026-05-01
5. Labyrinths and Legends2026-05-08
6. Subterranean Secrets and Forgotten Foundations2026-05-08
7. Buried Battleship and Viking Victims2026-05-15
8. Bones Beneath and Coffins & Coins2026-05-15
9. Subterranean Seoul and Railway Revealed2026-05-22
10. Secret School and Concealed Castle Cemetery2026-05-22