Within the Hôtel de Crillon, which was built in 1758, Les Ambassadeurs operated as a restaurant since the mid-19th century. It reached its peak of fame as a restaurant and nightclub (a "café-concert") in the last three decades of the 19th century. Always a center of entertainment for the aristocracy, in the 1870s it also became a regular destination of some of the best known figures of art and the demi-monde. Edgar Degas and Henri de Toulouse-Lautrec portrayed visitors at the night club, and Aristide Bruant performed there.