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You could try the global multi-layer GPS game from Google: Ingress You need to be able to navigate to locations (generally monuments, statues, major landmarks etc) and once there you claim them ...
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#1: Attribution notice removed
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System
·
2020-05-27T11:08:43Z (almost 4 years ago)
Source: https://outdoors.stackexchange.com/a/4294 License name: CC BY-SA 3.0 License URL: https://creativecommons.org/licenses/by-sa/3.0/