Inside abandoned sanatorium where patients wrapped up like mummies then drenched in water

There are many abandoned places across the globe allegedly teeming with the undead following disturbing pasts.

But one building complex in the US has an especially tortured history that some paranormal investigators say makes it one of the most haunted sites on the East Coast.

St. Albans Sanitorium in Radford, Virginia closed its doors for the last time in the 1990s.