Koło is a town on the Warta River in central Poland with 23,101 inhabitants. It is situated in the Greater Poland Voivodship, having previously been in Konin Voivodship, and it is the capital of Koło County.
Wikipedia https://en.wikipedia.org/wiki/Koło
Coordinates 52°12'7.152" N 18°38'9.568" E
