Creepiest Filming Locations Hollywood Has Ever Chosen

17. The Abandoned Rockhaven Sanitarium – A Forgotten Asylum for Hollywood's Elite

Rockhaven Sanitarium, located in La Crescenta, California, was once an exclusive mental institution for Hollywood’s troubled starlets and wealthy women during the early 20th century. This eerie, crumbling institution housed patients like Marilyn Monroe’s mother, Gladys Pearl Baker, and other forgotten figures of Hollywood’s golden age. Though abandoned for years, Rockhaven’s decaying walls and forgotten medical rooms make it an unsettling and hauntingly cinematic location, drawing filmmakers in search of authentic asylum horror aesthetics. The building has been used in several paranormal investigation shows, and people who visit claim to hear phantom voices, see shadowy figures lurking in doorways, and feel an eerie sensation of being watched. A few horror films have secretly shot scenes within its halls, but given its dark history and lingering spirits, Rockhaven remains one of Hollywood’s most haunted and unsettling film locations.