The 1974 Mr. Olympia contest was an IFBB professional bodybuilding competition held on October 12, 1974 at the Felt Forum at Madison Square Garden in New York City, New York.
 It was the 10th Mr. Olympia competition held.
The 1972 Mr. Olympia contest was an IFBB professional bodybuilding competition held in October 1972 at the Handelshof in Essen, West Germany.
 It was the 8th Mr. Olympia competition held.
The 2011 Ms. Olympia contest was an IFBB professional bodybuilding competition and part of Joe Weider's Olympia Fitness & Performance Weekend 2011 was held on September 16, 2011, at the South Hall in the Las Vegas Convention Center in Winchester, Nevada and in the Orleans Arena at The Orleans Hotel and Casino in Paradise, Nevada.
 It was the 32nd Ms. Olympia competition held.
 Other events at the exhibition included the 212 Olympia Showdown, Mr. Olympia, Fitness Olympia, Figure Olympia, and Bikini Olympia contests.
The 1975 Mr. Olympia contest was an IFBB professional bodybuilding competition held November 4–11, 1975 in Pretoria, South Africa.
 It was the 11th Mr. Olympia competition and the feature event of the 1975 IFBB International Congress.
The 2011 Mr. Olympia contest was an IFBB professional bodybuilding competition and the feature event of Joe Weider's Olympia Fitness & Performance Weekend 2011 held September 15–18, 2011 at the Las Vegas Convention Center and Orleans Arena in Las Vegas, Nevada.
 It was the 47th Mr. Olympia competition.
 Other events at the exhibition included the 202 Olympia Showdown,
The Las Vegas Convention Center (commonly referred to as LVCC) is owned and operated by the Las Vegas Convention and Visitors Authority in Winchester, Nevada.
The 2012 Mr. Olympia contest was an IFBB professional bodybuilding competition and the feature event of Joe Weider's Olympia Fitness & Performance Weekend 2012 held September 27–30, 2012 at the Las Vegas Convention Center and Orleans Arena in Las Vegas, Nevada.
 It was the 48th Mr. Olympia competition.
 Other events at the exhibition included the 212 Olympia Showdown,
The 2010 Ms. Olympia was an IFBB professional bodybuilding competition and part of Joe Weider's Olympia Fitness & Performance Weekend 2010 was held on September 24, 2010, at the South Hall in the Las Vegas Convention Center in Winchester, Nevada and in the Orleans Arena at The Orleans Hotel and Casino in Paradise, Nevada.
 It was the 31st Ms. Olympia competition held.
 Other events at the exhibition included the 202 Olympia Showdown, Mr. Olympia, Fitness Olympia, Figure Olympia, and Bikini Olympia contests.
The 1973 Mr. Olympia contest was an IFBB professional bodybuilding competition held on September 8, 1973, at the Brooklyn Academy of Music in Brooklyn, New York.
 It was the 9th Mr. Olympia competition held.
 The prize money for this event went down from previous years, from $1000, to only $750.
 Arnold gave a short speech and complained about this after he won .
The 2010 Mr. Olympia was an IFBB professional bodybuilding competition and the feature event of Joe Weider's Olympia Fitness & Performance Weekend 2010 which was held September 23–26, 2010 at the Las Vegas Convention Center and the Orleans Arena in Las Vegas, Nevada.
 It was the 46th Mr. Olympia competition.
 Other events at the exhibition included the 202 Olympia Showdown,

Question: The 47th Mr. Olympia competition was run by a Convention Center owned and operated by who?
Answer: Las Vegas Convention and Visitors Authority