One of the most baffling mysteries is that of Stonehenge located in England. The Stones are arranged in a peculiar fashion, most likely by the human hand. It is estimated that these structures of stone were built sometime between 3000 to 2000 B.C.E.
It is widely believed by experts to be some sort of ancient burial ground. Some dispute these claims and believe it was the site of healing rituals.
The construction is a mystery too. It is unknown how ancient builders were able to lift these heavy stones into place. Stonehenge has been left untouched for centuries, and it remains shrouded in mystery.