Question: What type of stadium aired the largest Professional Wrestling Pay Per View Event in history?
Context: The CMLL International Gran Prix (2017) was a "lucha libre", or professional wrestling, tournament produced and scripted by the Mexican professional wrestling promotion Consejo Mundial de Lucha Libre (CMLL; "World Wrestling Council" in Spanish) that took place on September 1, 2017 in Arena México, Mexico City, Mexico, CMLL's main venue.  The 2017 International Gran Prix was the thirteenth time CMLL held an International Gran Prix tournament since 1994.  All International Gran Prix tournaments have been a one-night tournament, always as part of CMLL's Friday night "CMLL Super Viernes" shows.  The event was available as an internet pay per view (iPPV) both in and outside of Mexico. Collision in Korea, officially known as the Pyongyang International Sports and Culture Festival for Peace (平和のための平壌国際体育・文化祝典 , Heiwa no tame no Pyon'yan kokusai taiiku bunka shukuten ) , was the largest professional wrestling pay-per-view (PPV) event in history.  It was jointly produced by World Championship Wrestling (WCW) and New Japan Pro Wrestling (NJPW), and took place over a period of two days on April 28 and 29, 1995 at May Day Stadium in Pyongyang, North Korea.  It aired in North America on August 4, 1995, when WCW broadcast a selection of matches from the show on pay-per-view. Death Before Dishonor VIII (DBD VIII) was a professional wrestling pay-per-view event produced by Ring of Honor (ROH), which was only available online.  There had been seven events entitled Death Before Dishonor in the past with this being the event's first time on pay per view.  It took place on June 19, 2010 in Toronto, Ontario, Canada. Kevin Kleinrock is an American executive producer, writer, director, consultant, and business developer.  He is currently the President of and executive producer for lucha libre focused enterprise Masked Republic which produces Pay Per View events under the name "Viva La Lucha", live shows, multiple clothing lines, publishes a monthly English language lucha libre zine called "Rudo Can't Fail", manages monthly lucha libre subscription box service "Lucha Loot".  The company is also in the process of developing multiple properties for television, film, and stage.  He is the former producer of Xtreme Pro Wrestling.  He is also the co-creator, producer and head booker of Wrestling Society X which aired on MTV and additional networks worldwide.  In the wake of WSX, Kevin was ranked in the Pro Wrestling Torch Most Influential People In Wrestling list.  Kevin currently consults with various wrestling, mixed martial arts and other live event and sports/entertainment related producers on production and monetization of content.  Masked Republic and Kleinrock's Stone-Rock Entertainment company (founded with actor/producer Stu Stone) created and produced a pilot for a lucha related live Vegas show called "Lucha Las Vegas". The CMLL International Gran Prix (2016) was a "lucha libre", or professional wrestling, tournament produced and scripted by the Mexican professional wrestling promotion Consejo Mundial de Lucha Libre (CMLL; "World Wrestling Council" in Spanish) that took place on July 1, 2016 in Arena México, Mexico City, Mexico, CMLL's main venue.  The 2016 International Gran Prix was the twelfth time CMLL held an International Gran Prix tournament since 1994 and the first one in eight years.  All International Gran Prix tournaments have been a one-night tournament, always as part of CMLL's Friday night "CMLL Super Viernes" shows.  The event was available as an internet pay per view (iPPV) both in and outside of Mexico. King of the Ring (1999) was the seventh annual King of the Ring professional wrestling pay-per-view event produced by the World Wrestling Federation (WWF).  It was presented by Super Soaker and took place on June 27, 1999, at the Greensboro Coliseum in Greensboro, North Carolina.  The main show included ten matches in total with several matches preceding the Pay Per View (PPV) portion of the show, broadcast on live television as part of the WWF's Sunday Night Heat show.  The main event was a Ladder match featuring Shane McMahon and Vince McMahon defeating Stone Cold Steve Austin for the control of the WWF.  The other main match was a WWF Championship match where The Undertaker defeated The Rock to retain the title.  Additional featured matches on the undercard included the KOTR tournament final between Billy Gunn and X-Pac, which Billy Gunn won to win the overall tournament and a Tag team match between The Hardy Boyz (Matt and Jeff) defeating The Brood (Edge and Christian). The Rungrado 1st of May Stadium, also known as the May Day Stadium, is a multi-purpose stadium in Pyongyang, North Korea, completed on 1 May 1989.  It is the largest stadium in the world, with a total capacity of 114,000.  The site occupies an area of 20.7 ha . The Great American Bash was a professional wrestling pay-per-view event produced in the summer in either the month of June or July by professional wrestling promotion World Wrestling Entertainment (WWE).  The 2009 edition was known as The Bash.  The event was originally-produced in 1985 under National Wrestling Alliance's Jim Crockett Promotions, and then by its successor, World Championship Wrestling (WCW).  According to Ric Flair in his autobiography, "To Be the Man", Dusty Rhodes invented the concept.  The last event was held on June 11, 2000, not to be held again due to the acquisition of WCW by World Wrestling Federation (WWF).  After a four-year hiatus, the event was revived by the rechristened WWE in June 2004 and would be exclusive to the SmackDown!  brand from 2004 to 2006.  In 2007, to follow the format of WrestleMania, WWE made all its pay per view events promotionwide, featuring matches with competitors from its three brands, Raw, SmackDown, and ECW.  The 2009 event was rebranded as The Bash, as a way to distance the show from its past as part of WCW.  The event was replaced in 2010 by Fatal 4-Way and WWE Money in the Bank. Final Battle was a two-night professional wrestling event produced by the U.S.-based wrestling promotion Ring of Honor.  It took place on December 18 and 19, 2015 at the 2300 Arena in Philadelphia, Pennsylvania.  It was the seventh event under the Final Battle name.  The first night was a pay per view broadcast, and the second night was a set of tapings for ROH's flagship TV show "Ring of Honor Wrestling". The Hustle King (Shinya Hashimoto) Memorial Six Man Tag Team Tournament was a professional wrestling memorial event produced by the HUSTLE (ハッスル (Hassuru ) ) promotion, which took place from July 9 to July 11, 2006 at the Pacifico Yokohama Kokuritsu Hall in Kanagawa (July 9) and Korakuen Hall in Tokyo, Japan (July 11).  The first show, featuring the opening rounds and semi-final bouts, was attended by an estimated 4,420 fans and was aired on pay per view as part of "Hustle Vol.  18 – Hustle King Forever".  It was held in memory of Shinya Hashimoto, who competed as Hustle King.  Hashimoto died after suffering a brain aneurysm in Tokyo, Japan on July 11, 2005.  It was the first Hashimoto memorial show held in Japan followed by the Shinya Hashimoto Legacy Memorial Cup Tournament in 2009.  Ten professional wrestling matches were featured on the event's card, five of which were tournament matches.
Answer: multi-purpose stadium