http://www.confluence.org

"So somebody had this idea, see. The idea was to take a picture of what things look like at the intersection of every whole number degree of latitude and longitude, except the ones at sea. The organizers of the site figure that works out to 16,160 locations on land. It's a volunteer effort; if you've got one, submit the picture to the site. They also accept pictures of locations that are not whole number intersections. The results so far are almost unbelievably boring. Keep up the good work."

http://www.confluence.org/country.php?id=1

http://www.confluence.org/region.php?id=17 (Texas 66 of 67)

http://www.confluence.org/region.php?id=24 (New Mexico 28 of 28)

http://www.confluence.org/region.php?id=30 (Colorado 30 of 31)

http://www.confluence.org/region.php?id=23 (Utah 19 of 19)

http://www.confluence.org/region.php?id=25 (Arizona 28 0f 28)

http://www.confluence.org/region.php?id=28 (Nevada 23 0f 24)

http://www.confluence.org/region.php?id=26 (California 47 of 52)

(Thanks to Cyberia via the Forteana list!)