4 | What on Earth? | Discovery

9 Seasons

S9 E1

Curse of the Amazon Nazis

Experts follow evidence of a Nazi base in the Amazons to a dark discovery.

S9 E2

Epstein’s Forbidden Temple

Satellite images capture a mysterious building on Jeffrey Epstein’s island.

S9 E3

Aztec Alien Mystery

Images reveal an alien substance in the land of the Aztecs.

S9 E4

Gate to the Viking Gods

New evidence reveals a Viking portal to their spiritual realm.

S9 E5

America’s Swamp Castle

Images reveal a forgotten war-torn fortress in the swamplands of Louisiana.

S9 E6

Lost City of the Vampires

Experts uncover a gravesite with the remains of possible vampire burials.

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