Season
Episode
- Episode 1: World's Strangest Ghost Towns
- Episode 2: Secret of Supervillain Island
- Episode 3: Escobar's Castle
- Episode 4: Labyrinth of the Dead
- Episode 5: Treasure of Outlaw Valley
- Episode 6: Alaska's Fort Apocalypse
- Episode 7: Alien Hell Portal
- Episode 8: Pompeii's Gate To Hell
- Episode 9: Haunting on Plague Island
Mysteries of the Abandoned Season 4
7/10 users Documentary series investigating why some of the world's most advanced architectural achievements were abandoned.
