Notre-Dame Collegiate Church (Collégiale Notre-Dame)

The Collégiale Notre-Dame de Vernon is a stunning medieval church that showcases five centuries of architectural evolution, from Romanesque to Flamboyant Gothic styles. Construction began in the late 11th century and continued remarkably through the Hundred Years' War thanks to royal protection, with the magnificent western façade completed in the 15th century. The church features impressive twin 70-meter spires and an exceptional rose window with tracery inspired by the Sainte-Chapelle de Vincennes. Inside, visitors can admire the remarkable 1610 organ by Jean Ourry with 2,200 pipes and an ornately carved tribune featuring King David and allegorical figures. While the original medieval stained glass was tragically destroyed during WWII bombings, the post-war windows by master glassmakers from Chartres create a harmonious modern complement to the historic architecture. Classified as a Monument Historique since 1862, the church contains over 30 classified objects and is currently undergoing major restoration of its western façade. Entry is free, though visitors should be mindful of mass times on Saturday evenings and Sunday mornings.