National Air & Space Museum, Washington D.C.

There have been several times in my life where I have walked around in a daze, mouth open and drool dripping looking more like a dork than usual. Times like Victoria's Secret shows, that once coming home from a bar (at least I walked), but the longest time I did it was at the National Air & Space Museum, Washington D.C. Amazing doesn't cover it. To see things like the "real" Spirit of St. Louis, Glamorous Glennis (first to break the sound barrier) the Wright Brother's Flyer.
Amazing just doesn't cover it.
If you ever go to D.C., put it high on your list of places to go. You can trust me, I'm a photographer.