Is Underground Worlds coming back?
Underground Worlds (2019–present) on U&Yesterday
The answer: Between seasons — last episode March 14, 2022, no return date announced yet.
2seasons
20episodes
About Underground Worlds
For centuries, people have built mind-blowing structures underground. This series reveals incredible feats of human endeavour and reveals what people have built, how they built it and why.
Underground Worlds episode schedule
20 aired
Aired · 20
| Date | Ep. | Title |
|---|---|---|
| March 14, 2022 | S2·E10 | Italy's Subterranean Secret |
| March 7, 2022 | S2·E9 | Subterranean Silo Survival |
| February 28, 2022 | S2·E8 | Buried Lab of the Black Hills |
| February 21, 2022 | S2·E7 | Medieval Maze of Secrets |
| February 14, 2022 | S2·E6 | Ireland's Underground Alcatraz |
| February 7, 2022 | S2·E5 | Mystery of the Kentucky Cave |
| January 31, 2022 | S2·E4 | Hotel Bunker of the Apocalypse |
| January 24, 2022 | S2·E3 | Cincinnati's Secret Caverns |
| January 17, 2022 | S2·E2 | Grand Canyon's Lost Treasure |
| January 10, 2022 | S2·E1 | Murder Raid Tunnels |
| November 27, 2019 | S1·E10 | Dover War Rooms |
| November 19, 2019 | S1·E9 | Edinburgh Vaults |
| November 13, 2019 | S1·E8 | The Maginot Line |
| November 6, 2019 | S1·E7 | Jersey War Tunnels |
| October 30, 2019 | S1·E6 | City of Naours |
| October 23, 2019 | S1·E5 | Bouzincourt |
| October 16, 2019 | S1·E4 | Kingdom of Salt |
| October 9, 2019 | S1·E3 | Switzerland |
| October 2, 2019 | S1·E2 | Sweden |
| September 25, 2019 | S1·E1 | Gibraltar |