1. The Trans-Allegheny Lunatic Asylum
Located in Weston, West Virginia, the Trans-Allegheny Lunatic Asylum was built in 1858 and opened for business in 1864. As one of the largest hand-cut stone masonry buildings in North America, the asylum was initially constructed to house up to 250 patients. But in the 1950s, more than 2,600 people were living there in some pretty dangerous conditions. Unfortunately, this massive building has a horrifying history, although it’s initial intentions were not to be so gruesome.