Google Sightseeing. Good selection of odd things in satellite photos. Let's hope it lasts.
Somewhat related: a great all-color book from 1976 called Mission to Earth: Landsat Views the World. This was produced by the U.S. Government Printing Office, and is gorgeous. It is 400 pages (in large format) of stunning satellite photos and geographical descriptions of various places on earth. A must-have for those who like photos from above.