Spend the night in the haunted Crescent Hotel in Eureka Springs, Arkansas, which opened in 1886. (During construction, a worker named Michael was killed, and his ghost reportedly still haunts room 218). The hotel came under the ownership of known medical fraud Norman Baker in 1937, who fancied himself a doctor. He turned the hotel into the Baker Cancer Hospital, claiming to have the cure for the disease (he did not, obviously). Patients who died under his care were buried right in the hotel's basement, which served as a makeshift morgue. He was arrested in 1940, but his patients' spirits are said to still remain. Since the hotel is still open, guests often say they see apparitions and hear noises during their stays. SyFy's Ghost Hunters even has footage of something moving in the basement.