Opened in 1904 and abandoned since the 1990s, Norwich State Hospital remains one of New England’s eeriest ruins. Once home to thousands of psychiatric patients, it’s infamous for inhumane treatments and countless deaths. Explorers report screams from empty wards, cold drafts through sealed tunnels, and a shadowy figure known as the White Nurse gliding past shattered windows. Its decaying halls have featured on multiple U.S. paranormal shows.