In July 2011 I've been in America for the first time and I also visited Washington D.C. with the white house!
It was an amazing experince, to see where the president of America actually lives and how it looks in real life, not only in pictures or videos I saw before.
The White House was so far away from the tourists view! We could only see one side of the building, but it was totally worth it! Altough it was terribly hot that day I will never forget it!