Abandoned Massive Florida Ghost Resort Haunted By Demons! History: Harder Hall, one of Florida's most haunted abandoned hotels. Named after its developers, Lewis and Vincent Hall. Prior to the Wall Street Crash of 1929, Florida experienced a boom in real estate and tourism. It was during this period that many Spanish-style hotels, such as Harder Hall, were built. Construction of the hotel began in 1925, prior to the end of the Florida land boom of the 1920s it was built in Sebring because the ci