What is the name of the famous Cirque du Soleil show in Las Vegas, Nevada that features aquatic performances?

Cirque du Soleil's O: The Aquatic Show is a world-renowned performance that is exclusive to Las Vegas. It is one of the most popular shows in the city and has been wowing audiences since it opened in 1998.

The show is a celebration of water and the human body, featuring synchronized swimmers, acrobats, and divers who perform in and around a massive pool that holds over a million gallons of water. The performers use the water as an extension of their bodies, executing breathtaking stunts and acrobatic feats that are unlike anything you've ever seen.

The show is held at the Bellagio hotel and casino, which is located on the Las Vegas Strip. It features a custom-built theater that was designed specifically for the show, with a circular stage that can be raised and lowered to change the depth of the pool.