The Grand Imperial Hotel in Silverton, Colorado is said to be haunted by a doctor known as Dr. Luigi, who is heard making noises on the second floor and is sometimes seen in the lobby. A spirit cat, sometimes called "Fluffy Boo," also haunts the hotel, leaving imprints on beds, meowing, and scratching at doors. Guests have reported disembodied voices, white mist, and blueish orbs captured on camera, suggesting a strong presence of paranormal activity. A spirit, believed to be a doctor named Luigi, is known to make noises, particularly on the hotel's second floor. Some guests have reported seeing his apparition in the lobby. A spectral cat named Fluffy Boo is a frequent visitor, heard meowing, hissing, and scratching at doors. Guests have felt the cat brush against their legs or seen it leave an imprint on their beds. Guests have reported seeing white mist and blueish orbs, with one claim of capturing ghosts on camera during late-night investigations, according to one YouTube video. Other accounts mention seeing the spirit cat walking across and sitting on people's feet, with some believing the cat frequents room 20. The Grand Imperial Hotel, known locally as the G.I., was built in the late 1800s.