I am an information hoarder and liked the Foursquare swarm app for checking into restaurants and other interesting places when I travel, because I love seeing the pins on the map of the places I have been and remembering places later. I have scripts running to download my check-ins and store them in a self hosted map.

But I obviously don’t need to keep giving them my location data. Are there any self hosted alternatives with that kind of international database of places?