A new way of seeing the world appeared throughout Europe in the 16th century. The kings, receptive toward the ideas of the renaissance, became interested in architecture, among other things, and tried to harmonize the façades of Parisian houses. Flamboyant Gothic was the style of the day (église Saint Séverin, hôtel de Cluny) followed by Art nouveau (Fontaine des Innocents, palais des Tuileries.)