The Church of Saint-Sulpice is a prominent Roman Catholic church located in the Saint-Germain-des-Prés area of Paris, France. Construction began in 1646 and continued for over a century, resulting in a blend of architectural styles, primarily Baroque and Neoclassical. The church is known for its impressive façade, grand interior, and notable features such as the large organ and the famous Sulpician paintings. Inside, the church houses several chapels, each adorned with beautiful artwork and sculptures. The Church of Saint-Sulpice is also famous for its gnomon, a solar device used to measure time, which reflects its historical significance in the study of astronomy.