http://wiki.xkcd.com/geohashing/Main_Page XKCD comic #426 contains an algorithm that generates random coordinates across the graticule every day. http://carabiner.peeron.com/xkcd/map/map.html?date=2025-05-22&lat=46&long=14&zoom=8&abs=-1 Latitude: 46.87657899079474 <br />Longitude: 14.17613345503677 46.87657899079474 14.17613345503677 Thu, May 22 2025 15:30:00 +0100 e0677b11d2f927ca2d1715051d4a4da6 http://carabiner.peeron.com/xkcd/map/map.html?date=2025-05-21&lat=46&long=14&zoom=8&abs=-1 Latitude: 46.56623975259636 <br />Longitude: 14.85451227163366 46.56623975259636 14.85451227163366 Wed, May 21 2025 15:30:00 +0100 90f516a318b4f623dac150f4b27cf04e http://carabiner.peeron.com/xkcd/map/map.html?date=2025-05-20&lat=46&long=14&zoom=8&abs=-1 Latitude: 46.71813544582052 <br />Longitude: 14.36351739409932 46.71813544582052 14.36351739409932 Tue, May 20 2025 15:30:00 +0100 b7d7b97de5c435115d0f79d72f081f75 http://carabiner.peeron.com/xkcd/map/map.html?date=2025-05-19&lat=46&long=14&zoom=8&abs=-1 Latitude: 46.96076444923508 <br />Longitude: 14.88592330943491 46.96076444923508 14.88592330943491 Mon, May 19 2025 15:30:00 +0100 f5f4a8b09fc7910fe2cbdeb8c97a1dae