The Summer Olympics have been in:
St Louis, Missouri 1904
Los Angeles, California 1932
Los Angeles, California 1980
Atlanta, Georgia 1996
The USA also had 4 Winter Olympics. They are the country the have hosted the Olympics most often with 8 total.
There was no Summer Olympics in 1966. 1964 was hosted by Tokyo, Japan and 1968 games were hosted by Mexico City, Mexico.
Edmonton has never hosted an Olympic Games, either Summer or Winter. Salt Lake City hosted the Winter Olympics of 2002.
There was no Olympic games in 1940.
Barcelona, Spain hosted the Olympics in 1992.
Taiwan, or Chinese Taipei as it is recognised by the International Olympic Committee, has never hosted the Olympics. In fact technically a country never hosts the Olympics; they are awarded to a city. So, for instance, London, of which the British are justifiably proud, has hosted the games three times, but the USA has hosted the games more times, as they have been awarded to various cities (St Louis, Los Angeles twice, Atlanta, Lake Placid twice, Squaw Valley and Salt Lake City). If the games were ever to be held in Taiwan, they would probably be awarded to Taipei, which is Taiwan's biggest city.
Mexico City, Mexico hosted the 1968 Summer Olympics.
London, England. London also hosted the 1948 Summer Olympics and is scheduled to host the 2012 Summer Olympics.
Seoul hosted the 1988 Summer Olympic games.
Athens
Montreal
Sydney, Australia was the host city for the 2000 Summer Olympics.
There was no Summer Olympics in 1966. 1964 was hosted by Tokyo, Japan and 1968 games were hosted by Mexico City, Mexico.
Barcelona.
Barcelona
Paris, France.
Tokyo
Edmonton has never hosted an Olympic Games, either Summer or Winter. Salt Lake City hosted the Winter Olympics of 2002.