What on Earth? Season 11 Episode 4
Mystery of the Welsh Mine
Satellites capture ruins amid bizarre structures on a Welsh mountaintop.
11 - 10Ancient Rome's El DoradoAug. 24, 2022- 11 - 9Holes of Dead Sea DestructionAug. 17, 2022
- 11 - 8Poland's Secret Nazi CompoundAug. 10, 2022
- 11 - 7Russia's Lightning LabAug. 03, 2022
- 11 - 6Circles of the High KingsJul. 27, 2022
- 11 - 5Riddle of Sardinia TowerJul. 20, 2022
- 11 - 4Mystery of the Welsh MineJul. 13, 2022
- 11 - 3Doomsday Lair of GreeceJul. 06, 2022
- 11 - 2Range of Nazi EvilJun. 29, 2022
- 11 - 1Secret Soviet SpacecraftJun. 22, 2022
