If You want to here lots of screams, go to Hollywood towers Hotel at Disney land where you get a chance to get into the Hollywood Tower's Ghost Lift. This will scare you to death by going upto 13th floor and dropping from there, and not just once but many times(I lost count while dropping second time) What more, the doors open when you reach top of the building and you could see the outside of the building.

Hollywood Towers (or also known as Twilight Zone Tower of terrors) is a great thrilling attraction at Disney's California Adventure park, apart from Soarin where you get a chance to fly over california, and Imagination, a 3D movie where rats from the movie comes to your legs and walk on your legs, it was amazing, and Python coming and trying to eat you, etc.