3. Massive, Odd Bones

Found in the 1990s
Estimated Value: N/A
The incredible collection of enormous bones found in the Panxian Dadong Cave in southern China has drawn attention, including those of ancient rhinos, elephant-like Stegodons, and the bigfoot-like Gigantopithecus.

Huge, Strange Bones @newyorkmapcompany/Pinterest
With a sheer rock entrance and a height of 1,600 feet above sea level, the cave begged the question, “How did ancient humans get these massive mammal remains up there?” Indications of human manipulation, including cutting and burning, suggested that our predecessors were involved in gathering this treasure. The mystery of the cave casts doubt on our knowledge of prehistoric human capabilities and interactions with enormous wildlife in difficult environments.