21st Century Technology
Thanks to Google Maps, you can now see satellite pictures of just about anywhere in the United States! Neat! Of course, both MapQuest and Microsoft have had these features for a couple of years, but since it's Google, it gets all the press. Go ahead, check it out- type in your address or the city where you live and odds are good it will show up.

Just like anything else on the internet, this has led to some, ah, interesting applications. Check out this webpage for sights to check out.


Edit: Be sure to click on the "Satellite" link in the upper right corner at the Google Map webapge!