30 Unusual Archaeological Finds In The US We Still Can’t Explain

21. AN ANCIENT STONE WHEEL

Across America, there are a few structures called a medicine wheel. The structure consists of many stones which form the shape of a wheel. In Wyoming, the Bighorn Medicine Wheel is the biggest as its 75 feet in diameter. The site predates the Crow people who first lived in the area, which makes the structure unique. An astronomer, John Eddy, studied the complex and stated the wheel’s spokes point in the direction of the sunrise on the different solstices. No one knows who built it.