Which are the Olympic Games venues for the next 24 years?

The Olympic cities are announced 7 years before the event. The last city to be announced was on July 4, 2007 for the Winter Games to be held in Sochi, Russia in 2014. The announcement for the next Summer Games came on July 6, 2005 for London in 2012. The host city for the 2016 Summer Games will be announced in July 2009 for the 2016 Olympics.