At the Desert Passage Mall at the Aladdin which is changing its name to Planet Hollywood they have a free attraction which is pretty cool; The attraction is a rain storm with loud thunder and also has a sky of lightning in the Merchants Harbor area of the mall. If you are visiting the mall its worth seeing but probally not worth a trip on its own it runs hourly Monday to Thursday and half hourly Friday to Sunday. Check with the mall or hotel for more details as it could change with the hotel name change and rebranding. (888) 800-8284