Question: What city does O and Cirque du Soleil play in?

Context paragraphs:
Zumanity: Zumanity is a resident cabaret-style show by Cirque du Soleil at the New York-New York Hotel & Casino on the Las Vegas Strip.  The production was unveiled on September 20, 2003.  It is the first "adult-themed" Cirque du Soleil show, billed as "the sensual side of Cirque du Soleil" or "another side of Cirque du Soleil".  Created by René Richard Cyr and Dominic Champagne, "Zumanity" is a departure from the standard Cirque format.  Intended to be for mature adult audiences only, this show is centered on erotic song, dance, and acrobatics.

Anna Stankus: Anna Stankus is a circus performer who specialises in hula hoop manipulation whilst also incorporating rhythmic gymnastics and contortion in her acts.  She is currently on tour with Cirque du Soleil Amaluna for its European and South American tours.  Since first beginning her career in 2007, she has gone on to perform in many productions worldwide including for Cirque du Soleil, Cirque Le Noir, Franco Dragone shows and in various variety shows in her hometown of Las Vegas.

Cirque du Soleil: Fire Within: Cirque du Soleil: Fire Within is a 2002 Canadian reality television mini-series.  The series follows eight Cirque du Soleil performers during the creation and production of the Cirque's touring production, "Varekai".  Stress ensues as several newcomers try to learn new acrobatic acts for the show, while the subplot also follows the crew behind the show trying to cast new performers, advertise the production, create the stage set, costumes, and make-up, and manage the show under the direction of newcomer Dominic Champagne.

Paramour (Cirque du Soleil): Paramour was Cirque du Soleil's first resident musical theatre show at the Lyric Theatre on Broadway, New York City.  "Paramour" was themed to the "Golden age of Hollywood" and followed the life of "a poet who is forced to choose between love and art".  It had similar elements to Cirque du Soleil's retired Los Angeles resident show in "Iris" (which was also themed on cinema) written and created by Philippe Decouflé, and had a 38-person onstage cast with actress Ruby Lewis in the lead as Indigo.  "Paramour" began preview shows on April 16, 2016, with an official premiere on May 25, 2016.  It closed exactly one year after its first preview show, on 16 April 2017.

Michael Jackson: The Immortal World Tour: Michael Jackson: The Immortal World Tour was the first of two different theatrical productions by Cirque du Soleil using the music and vision of Michael Jackson along with Cirque du Soleil's signature acrobatic performance style to create a realistic concert experience.  The show was written and directed by Jamie King and produced in partnership with the Estate of Michael Jackson.  The arena show—which is very similar to a rock concert—began its tour October 2, 2011, in Montreal.  After touring North America for one year, "Immortal" continued through Europe, Asia, Australia, New Zealand and the Middle East before returning to North America in February, 2014 for a total of 501 shows from 141 cities.  It is the most financially successful Cirque production and highest grossing tribute show in history.

O (Cirque du Soleil): O is a water-themed stage production by Cirque du Soleil, a Canadian circus and entertainment company.  The show has been in permanent residence at the Bellagio in Las Vegas, Nevada, United States, since October 1998.  "O", whose name is pronounced the same way as "eau", the French word for "water", takes place in, around and above a 1.5 e6USgal pool of water, featuring water acts such as synchronized swimming as well as aerial and ground acts.  The "O" theatre, which is designed to resemble a 14th-century European opera house, has 1,800 seats, thus allowing the performance to be watched by 3,600 people a night since the performance usually plays twice in a given day, also designed to meet the special demands of the show.

Benoît Jutras: Benoît Jutras, (born 1963) is a Canadian composer.  Jutras is best known for his work with the Canadian entertainment company Cirque du Soleil, first as music director and later as composer for several of the company's contemporary circus shows.  Jutras' music often blends eclectic influences, including world beat, classical, rock, trip hop, and electronica.  His scores for Cirque du Soleil shows include "O", "Mystère", "Quidam", and "La Nouba".  His work outside of Cirque du Soleil has included original soundtracks for "Le Rêve" (a show at the Wynn resort in Las Vegas), the "Glow in the Park Parade" (a nighttime parade at Six Flags theme parks), and "The House of Dancing Water" (a show at the City of Dreams resort in Macau).  He has also composed for film and television.

Mystère (Cirque du Soleil): Mystère is a Cirque du Soleil show in permanent residence at the Treasure Island Hotel and Casino in Las Vegas, Nevada, United States.  It is one of six resident Cirque du Soleil shows in Las Vegas, the others being "O", "Zumanity", "Kà", "Love", and "".  "Mystère" was first performed on December 25, 1993 and quickly won over audiences with its unique style of circus entertainment.  As with many Cirque du Soleil productions, "Mystère" features a mixture of circus skills, dance, elaborate sets, opera, worldbeat music, and street theatre-style comedy.

Cirque du Soleil: Worlds Away: Cirque du Soleil: Worlds Away is a 2012 American 3D family fantasy film directed by Andrew Adamson.  The film premiered on October 20, 2012 at the Tokyo International Film Festival, and was released theatrically in the United States on December 21, 2012.  Distributed worldwide by Paramount Pictures on December 21, 2012, the film tells the story of a girl named Mia going to a traveling circus and falling in love with its main attraction, the Aerialist.  After the Aerialist falls during his act, he and Mia are transported to another world where each encounter the different worlds of Cirque du Soleil through O, Mystère, Kà, Love, Zumanity, Viva Elvis and Criss Angel Believe.  It stars Erica Linz and Igor Zaripov as the main characters and incorporates acts from some of the Cirque du Soleil shows that were running in Las Vegas in 2011 including O, Mystère, Kà, Love, and Viva Elvis.

Dralion: Dralion (pronounced Drah-lee-on) was a touring production by the Canadian entertainment company Cirque du Soleil.  The show combined elements of traditional Chinese circus with Western contemporary circus, complementing the "East-meets-West" theme implied in the title — the name is a portmanteau of "dragon" (representing the East) and "lion" (representing the West).  It is Cirque du Soleil's 12th touring production and the first Cirque show since 1985 not to be directed by Franco Dragone.  Dralion performed its final show at the Sullivan Arena in Anchorage, Alaska on January 18, 2015, bringing its 15 year world tour to a close.

Supporting paragraphs: Cirque du Soleil: Worlds Away O (Cirque du Soleil)
Answer: Las Vegas