1714 Ivar Ave

Hollywood, CA 90028

The Knickerbocker, now a senior living facility, might be one of the most haunted places in Los Angeles. It was built as an apartment building in 1925, then became a fancy hotel—Rudolph Valentino is now said to haunt the bar; Marilyn Monroe supposedly hangs out in the ladies' room; and there are lots of assorted other sightings. (And there’s plenty of other fodder: Director DW Griffith died in the lobby and actress Frances Farmer was arrested in the hotel on her way to insanity.) But it’s perhaps most notable for its non-haunting. After Harry Houdini’s death on Halloween 1926, his widow Bess attempted to contact him every year for 10 years with a seance on the roof of the Knickerbocker. No dice.