For almost 20 years, I've wanted to build a site where users can upload photos of informational boards/plaques along the road (e.g. on highways), along with photos of the actual item the board was talking about. The idea was that you could browse a map, and see all the ones along the route you were thinking of traveling, and decide which spots were worth stopping at.

In those days there were no cell phones, and I didn't know much web development. Now, with GPS embedded into photos, this is perhaps a really easy site to build.

But I don't want to deal with user moderation. And I don't want the burden of continual maintenance.

I was also concerned that a side effect would be really nice, not frequently visited spots will suddenly overflow with tourists. A much tougher problem to crack.

I don't think I'll ever get around to it. Someone convince me otherwise. Or better yet, build it for me. :-)