What on Earth? (2015) | All episodes

Doomsday Lair of Greece

Release Date: 2022-07-06

Mystery of the Welsh Mine

Release Date: 2022-07-13

Riddle of Sardinia Tower

Release Date: 2022-07-20

Circles of the High Kings

Release Date: 2022-07-27

Russia's Lightning Lab

Release Date: 2022-08-03

Poland's Secret Nazi Compound

Release Date: 2022-08-10