Xanten Cathedral, also known as St. Viktor Cathedral, is a Roman Catholic church located in Xanten, Germany. It was built in the Gothic style, with construction beginning in the 13th century and continuing for several centuries. The cathedral is known for its impressive twin towers and beautiful stained glass windows, which attract many visitors. The cathedral stands on the site of an earlier church and is part of the Xanten Archaeological Park, which showcases the history of the ancient Roman city of Colonia Ulpia Traiana. Today, Xanten Cathedral serves as a significant religious site and a popular tourist destination, reflecting the rich cultural heritage of the region.