My guess would be Lausanne, Switzerland which is where the IOC headquarters and the Olympic museum are.
There was no Summer Olympics in 1966. 1964 was hosted by Tokyo, Japan and 1968 games were hosted by Mexico City, Mexico.
There was no Olympic games in 1940.
Barcelona, Spain hosted the Olympics in 1992.
Edmonton has never hosted an Olympic Games, either Summer or Winter. Salt Lake City hosted the Winter Olympics of 2002.
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.
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
Nagano, Japan hosted the Winter Olympics in 1998.
Nagano, Japan, hosted the 1998 winter Olympics.
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.