The Aquarium at Mirage

When guests enter, one of the first sights they'll notice is a 20,000-gallon saltwater aquarium. Stocked with angelfish, puffer fish, tangs, and other exotic sea creatures, including three different kinds of sharks, the aquarium also houses over 1,000 coral-reef species from around the world. It is one of the most elaborate and technically advanced coral-reef aquariums in the world. The tank itself is 53 feet long with water that is six feet deep. This is a free exhibit, open 24 hours a day.

Admission: Free