I thought this was cool.

  1. Go to http://www.geocode.com/eagle.html-ssi and give it your address. Be sure the box at the bottom is set to 'Address Info'. Press the 'Request' button. You now have the lat/lon for your address.
  2. Go to http://www.terraserver.com/advfind.asp and give it the lat/lon you just got from the previous step.
Nifty, eh?