Point the camera and see what's around. Uses a variety of sources, including Wikipedia , Twitter, OpenStreetMap and mixare.org. Versions after 0.9.2 are built from a different repository which avoids the Google Maps requirement and uses OSM instead. (This is not fully implemented yet).
Google Maps don't function in the f-droid.org build, because API keys aren't in the source code.
Anti-feature: Dependencies. It's necessary for Google Maps to be already installed either as an app or as a shared system library for this app to be installable.
Note: This app is currently not actively maintained.