On the eve of the London Games, we're putting your Olympics knowledge to the test. To date, 132 countries have won medals at the Summer games, but only 30 have crossed the 100-medal threshold. How many of those 30 can you name?

And yes, this list includes a few countries that don't exist anymore and some that have split up or reunited. We're including any recognized body that won 100 medals or more. Oh, and we also included the bloc of former Soviet countries that competed as "Unified Team."