Underground Worlds
TV Show| Title | Underground Worlds |
| User score | 8 |
| Release date | Sep 25, 2019 |
| Release date of last episode | Mar 14, 2022 |
| Genre | Documentary |
| Production country | United Kingdom |
| Series status | Returning series |
| Seasons count | 2 (List of episodes) |
| Episodes count | 20 |
| Run time | 45 min. |
British documentary series exploring incredible feats of human endeavour underground, revealing what people have built, where they have built it, how and why.
Latest episodes
List of episodesS2.E10 ∙ Italy's Subterranean Secret
Mar 14, 2022
S2.E9 ∙ Subterranean Silo Survival
Mar 7, 2022
S2.E8 ∙ Buried Lab of the Black Hills
Feb 28, 2022
S2.E7 ∙ Medieval Maze of Secrets
Feb 21, 2022
S2.E6 ∙ Ireland's Underground Alcatraz
Feb 14, 2022
S2.E5 ∙ Mystery of the Kentucky Cave
Feb 7, 2022
S2.E4 ∙ Hotel Bunker of the Apocalypse
Jan 31, 2022
S2.E3 ∙ Cincinnati's Secret Caverns
Jan 24, 2022
S2.E2 ∙ Grand Canyon's Lost Treasure
Jan 17, 2022
S2.E1 ∙ Murder Raid Tunnels
Jan 10, 2022
S1.E10 ∙ Dover War Rooms
Nov 27, 2019
S1.E9 ∙ Edinburgh Vaults
Nov 20, 2019
S1.E8 ∙ The Maginot Line
Nov 13, 2019
S1.E7 ∙ Jersey War Tunnels
Nov 6, 2019
S1.E6 ∙ City of Naours
Oct 30, 2019
S1.E5 ∙ Bouzincourt
Oct 23, 2019
S1.E4 ∙ Kingdom of Salt
Oct 16, 2019
S1.E3 ∙ Switzerland
Oct 9, 2019
S1.E2 ∙ Sweden
Oct 2, 2019
S1.E1 ∙ Gibraltar
Sep 25, 2019
