I read about the Degree Confluence Project in Graham Robb's The Discovery of Middle Earth as part of his discussion of Celtic and Druidic mapping of Europe.
The Degree Confluence Project is a World Wide Web-based all-volunteer project which aims to have people visit each of the integer degree intersections of latitude and longitude on Earth, posting photographs and a narrative of each visit online. The project describes itself as "an organized sampling of the world"...Everyone lives within 49 miles of such a confluence. The photo above is from the confluence closest to my favorite recreation area. It shows the Heartland Bike Trail at 47°00'000" N /95°00'000" W (just west of Walker, Minnesota).
The total number of degree confluences is 64,442, of which 21,543 are on land, 38,409 on water, and 4,490 on the Antarctic and Arctic ice caps....
The project's website is here. It's easy to use, and you can access sites worldwide. Here's a composite of the worldwide confluences for which photos are posted:
Try a location near you. Or type a random pair of numbers in the search box and explore.