Rouen is a city in northern France located on the River Seine, about 90 miles northwest of Paris. It is the capital of the region of Normandy and has a population of over 110, 000 people. Rouen is known for its Gothic architecture, including the Notre-Dame Cathedral, which was built in the 13th century. Lille is another city in northern France, located near the border with Belgium. It is the capital of the Hauts-de-France region and has a population of over 230, 000 people. Lille is known for its Flemish Renaissance architecture, as well as its many museums and galleries.