The Mushroom Museum is a museum that appears in Luigi's Mansion 2, Luigi's Mansion 3: The Room of DOOM!, Luigi's Mansion 4: Haunted Dreams, Luigi's Mansion 5: Curse of the Mansion, and Luigi's Mansion 6: U Are Doomed!!. It is usually turned into a haunted mansion during the course of the game. It appears to be fueled with the energy of the Grand Stars.