O by Cirque du Soleil

O takes Cirque du Soleil's stunning performances to a world of water, as the show takes place in and above a 1.5 million-gallon pool at The Bellagio. This award-winning show features synchronized swimmers, divers, and nine other acrobatic acts.

Recently added to the offerings of O are backstage tours at their theatre, which is designed to look like a 14th century opera house. The tour visits the costume workshop, underwater lighting area, catwalks, and more.