NGA Photo Snapper

http://www.nga.gov/kids/zone/photoop.htm

NGA link

http://www.nga.gov/kids/zone/zone.htm


Click the link above and check out the cool stuff you can do on this site.
Some things may take some time to load.

~be SURE to check out PHOTO OP.  Its neat (& its explains f-stop/shutter speed)