St. Quirinus of Neuss Cathedral is a Roman Catholic church located in Neuss, Germany. It is dedicated to St. Quirinus, a Christian martyr and the patron saint of the city. The cathedral features a blend of architectural styles, primarily Romanesque and Gothic, and is known for its impressive twin towers and beautiful stained glass windows. The cathedral's construction began in the 12th century, with significant additions made over the centuries. It houses various religious artifacts and artworks, making it an important site for both worship and tourism. The cathedral is also a key part of the Neuss cultural heritage and attracts visitors interested in history and architecture.