You might know that one of my favorite things to do is poke around on the greatest invention known to man, Google Earth. I don't know why, but it's fun to find the satellite images of places I've been, like Great Adventure, the place we stayed in Quebec and Independence Hall. Now, those links point to places via Google Local, the not-quite-as-good online version that doesn't offer as up-to-date or high resolution photos as Google Earth.
Anyway, I've found a cool new blog called Google Sightseeing that includes links to famous and interesting landmarks. Poke around a bit and be sure to click on the links. If you do, I'm sure you'll be downloading Google Earth and sightseeing in high-res in no time.