Out of Place Artifacts (OOPArts)

Unearth the secrets of Derinkuyu underground city. Discovered in 1963, this massive subterranean marvel sheltered 20,000 people. Why did ancient people hide?

Dive into the mystery of the Yonaguni Monument origins. Is this massive underwater structure off the coast of Japan a natural wonder or a lost civilization?

Unravel the Roman dodecahedron mystery. Why did the ancient empire leave behind over 130 of these bizarre twelve-sided bronze objects with no written records?

Discover the London Hammer Artifact, a modern iron tool mysteriously encased in ancient Texas rock. Could this bizarre 1936 discovery rewrite human history?

Decode the mystery of the Copper Scroll treasures. Unearthed in 1952, this ancient metal map reveals a hidden hoard of gold. Are the riches still out there?

Discover the mystery of Pampa de las Llamas Moxeke, an ancient Peruvian city that predates the Inca. Explore the advanced engineering of this lost civilization.

Discover the mystery of the Lady of Dai, the best-preserved mummy in history. Her skin is still soft after 2,100 years. Explore the secrets of this ancient find.

In 1885, a 20-million-year-old piece of coal revealed a metallic secret. Discover the mystery of the Salzburg Cube and the truth behind this impossible artifact.

In 1934, two miners found a tiny six-inch mummy in a Wyoming cave. Was it a human infant or a long-lost pygmy race? Explore the mystery of the San Pedro Mummy.

Discover the legend of the Houghton Iron Man. Explore the mysterious link between Marvel billionaire Tony Stark and the campus of Michigan Technological University.