La Cathédrale de Rouen. Le Portail et la Tour Saint-Romain, plein soleil

Claude Monet, 1893 Monet painted the west front of the Rouen Cathedral more than thirty times from rented spaces across the street while despairing because he realized the difficulty of painting light while it changed. In morning light, when golden light touched the facade of the cathedral, in full sun, under gray clouds, at sunset, he painted layer over crusty layer, over and over.