St. Kolumba - Credit: Wikimedia Commons
St. Kolumba was one of the largest parish churches in medieval Cologne, dating back to 980, and dedicated to Columba of Sens. The original Romanesque church was replaced by a Gothic church. Artworks in it included the Saint Columba Altarpiece by Rogier van der Weyden, and an altar by an anonymous artist. Read more on Wikipedia
Source: en.wikipedia.org