There was no Summer Olympics in 2007.
The country that holds the Guinness Record for most medals won in a single Summer Olympics is The United States, with 239 medals, of which 78 were gold, 82 were silver and 79 were bronze.
japan: 13
Soviet Union
China
U.S.A
USA (45).
The hobos in china...
China (51)
China, with 5
As of the 2008 Games, that would be the United States who have hosted four Summer Olympics and four Winter Olympics.
146,