Saint Waltrude's Cathedral is a Romanesque and Gothic-style church located in Mons, Belgium. It is dedicated to Saint Waltrude, a local saint and the daughter of Saint Vincent. The cathedral is known for its impressive architecture, including a striking bell tower that is a UNESCO World Heritage site. The interior of the cathedral features beautiful stained glass windows and intricate sculptures. It houses several important relics, including those of Saint Waltrude herself. The cathedral serves as a significant religious site and a popular tourist attraction, reflecting the rich history and culture of the region.