The Lemp Mansion in St. Louis, Missouri, is said to be one of the most haunted places in America. The mansion was built in the 1860s and was home to the Lemp family, who made a fortune in the brewing industry. However, tragedy struck the family multiple times – several family members committed suicide, and others died under mysterious circumstances. Today, the mansion operates as a bed and breakfast, but guests have reported eerie occurrences such as apparitions, unexplained noises, and even glasses and doors moving on their own.