https://www.google.com/maps/@38.8863209,-77.1758466,18z/data=!1e3?ps=MTk2MA%3D%3D
   An idea whose time has come.* They should keep it.* Maybe it'll
   start a trend of kids putting candy down the street and daring
   other kids to eat them, dodging cars, ghosts and other obstacles
   :P I turned the entire Greyhound bus route for the USA and
   Canada into a Map for a Zork-style text adventure I never
   finished.* I completed the map though.
   [1]http://minimumuniqueness.com So gamifying a real map is...
   well, oddly logical... when you've been brought up with video
   games :P

References

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   1. http://minimumuniqueness.com/