Rouen Cathedral is a Catholic church in Rouen, Normandy, France. It is the archiepiscopal seat of the Archbishop of Rouen, Primate of Normandy. It is famous for its three towers, each in a different style. The cathedral, built and rebuilt over a period of more than eight hundred years, has features from Early Gothic to late Flamboyant and Renaissance architecture. It also has a place in art history as the subject of a series of impressionist paintings by Claude Monet, and in architecture history, as from 1876 to 1880 it was the tallest building in the world. 151 m tall. Wiki link