Bison Skull Mountain
This mini-mountain made of bison skulls actually isn’t a creepy art installation. Originally, bison were hunted for their skins in the 1800’s but the left over bones weren’t used by hunters so, instead of just tossing them, they used the bones in refining sugar, making fertilizer and fine bone china. Pictured here are a few hundred skulls in 1870 before being used.