Sunland is a ruined insane asylum for children, located in Tallahassee, Florida. It started out in the mid-1950s as a tuberculosis ward, and was repurposed when a vaccine for TB was developed. It spent the rest of its existence as an asylum, primarily for children, until it was abandoned a couple decades ago. It's sat there ever since, slowly crumbling away. There's a badly-written Wikipedia entry about the place, in fact.