This one is at the top of nearly every ghost hunter's bucket list, but no guests under 16 years old are permitted to venture beyond its doors. Legends claim its grounds are cursed, and a waiver must be signed if you plan to stay overnight. There are reports of chairs rocking on their own, flickering lights, strange sounds abounding throughout the hallways, footsteps on your trail, and animals behaving erratically. Most noteworthy of all? This real-life haunt inspired Stephen King's The Shining.