I play the geocaching game Ingress, and one of its features is the option to do “missions” – specific collections of waypoints to visit. Most of these are relatively short, with under 20 waypoints in a relatively small geographic area.

However, on a road trip that I took earlier this year, I pulled out Ingress on a break and noticed a mission called Ohio County Courthouses, which required visiting the courthouse in each of Ohio’s eighty-eight counties.

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