Chartres is a town in France located about 80 km southwest of Paris. It is known for its Gothic cathedral, which is a UNESCO World Heritage Site. Laon is a commune in northern France, located about 90 km northeast of Paris. It is home to the Cathedrale Notre-Dame de Laon, a 12th-century Gothic cathedral. Sens is a commune in the Yonne department in Bourgogne-Franche-Comte in north-central France. It is home to the Cathedrale Saint-Étienne de Sens, a Gothic cathedral built between 1140 and 1176. All three towns are known for their French cathedrals, making them popular tourist destinations.