The Abbey church in Czerwińsk nad Wisłą was built in the 12th century. Despite Gothic and Baroque elements added in later centuries, the basilica remains one of the most valuable examples of Romanesque architecture in Poland.
Wikipedia https://en.wikipedia.org/wiki/Abbey_Church,_Czerwińsk_nad_Wisłą
Address 23 Klasztorna, Czerwińsk nad Wisłą 09-150, Poland
Coordinates 52°23'42.944" N 20°18'35.293" E