You get dropped somewhere on Earth with no map. Look around, read the signs, then put your pin where you think you are.
Every map works without a key through Google's free Street View embed. Add a key for the full Street View player: return-to-start and a strict No move mode. Get a key →
Pass one phone around. Everyone gets the same spot each round and guesses in turn. Closest pin wins.
Pass the device to
No peeking at the others' pins.
Scanning the planet…