Last night I was watching my fave TV show Top Gear and they mentioned the perfectly circular Nardo ring in Italy. well I Googled it and here it is. An awesome sight from space!
Here are the coords in Google Maps. Check out the satellite view!
http://maps.google.de/maps?ll=40.324539,17.824676&z=13&t=h&hl=en-GB
And here is a cool image!
