Haunted Places:Hollywood Roosevelt Hotel,Los Angeles, California.

Brief history: Located on Hollywood Boulevard and opened for business in 1927, the Roosevelt Hotel is one of the most famous hotels in Los Angeles and one of the most haunted places in the world. It has long been a hangout for Hollywood's biggest stars, and the popularity of its trendy Teddy's nightclub still attracts the glitterati.

Ghosts: The Roosevelt is nearly as famous for its big-name ghosts, including Marilyn Monroe and Montgomery Clift. Haunting activity includes:

• Marilyn Monroe's ghost has been seen reflected in a mirror in room 229 and dancing in the hotel's ballroom.
• Montgomery Clift's ghost is thought to haunt room 928, where he stayed whilte filming From Here to Eternity, and can still be heard playing his trumpet. His spirit has also been spotted on the eighth floor.
• One guest who stayed in room 928 felt patting on her shoulder by an unseen hand as she lay in bed reading.
• There is an eerie cold spot in the Blossom Ballroom that is about 10 degrees colder than the rest of the room.
• The ghost of a man dressed in white has been seen standing near a piano in the Blossom Ballroom. When guests approached the man, after hearing piano music, he vanished before their eyes.
• The ghost of glamorous movie star Carole Lombard, wife of Clark Gable, has been spotted on the 12th floor, where she and Gable often stayed.
• Former Saturday Night Live cast member Ana Gasteyer, while staying one of the hotels's suites, encountered a piano that played by itself and the full-body apparition of a maid in a hall closet.
• Security guards have seen a ghost at the hotel's pool. It could be seen on security cameras, but when a guard went to check it, he could see no one -- although it still appeared on the security monitor.
• The ghost of a pony-tailed little girl named Caroline has been seen skipping and singing around the fountain in the lobby.
• Guests returned to their rooms only to find them locked from the inside.