Who has hosted the most summer and winter olympic games?

As of the 2008 Games, the United States has held 8 Olympic Games, 4 Summer and 4 Winter. Summer - 1904 - St. Louis

1932 - Los Angeles

1984 - Los Angeles

1996 - Atlanta Winter - 1932 - Lake Placid

1960 - Squaw Valley

1980 - Lake Placid

2002 - Salt Lake City