Saint-Jean Cathedral is a prominent Gothic cathedral located in Lyon, France. It is known for its stunning architecture, featuring intricate stained glass windows and a remarkable astronomical clock. The cathedral was built between the 12th and 15th centuries, showcasing a blend of Romanesque and Gothic styles. The cathedral serves as the seat of the Archbishop of Lyon and is an important religious site. It hosts various liturgical events and ceremonies throughout the year. Visitors can explore its beautiful interior and learn about its historical significance in the region.