The White House. Whenever you see it on TV, it's always seems so big and pristine. Well, when I drove by, it's practically gated off, fence all around it, so freaking many cars and trees in the way that you can't really even see it. That was a letdown.
Also, the Crown Jewels in the Tower of London. Oh. my. god. So beautiful...perhaps only because I'd never been in a room with that much wealth before
I think I went back on the moving sidewalks about five times so I could take in every detail.