O by Cirque du Soleil (Bellagio)

Cirque du Soleil's 'O' is a water-themed resident production staged in a custom theater at the Bellagio. The show premiered in 1998 shortly after the Bellagio's opening and has been performed there as a long-running resident production. 'O' features synchronized acrobatics, synchronized swimming and elaborate stage engineering that incorporates a 1.5-million-gallon pool. It is ticketed and presented nightly or multiple times per week depending on the season and schedule.