Beispiele:
https://www.google.com/maps?ll=50.905556,5.821944
https://www.google.com/maps?q=50.905556,5.821944
https://www.google.com/maps/@50.9788786,5.9992628,10z
https://www.openstreetmap.org/search?lat=49.59553&lon=11.01286
https://www.openstreetmap.org/#map=19/49.59571/11.01384