The Cité de l'Architecture et du Patrimoine is a museum of architecture located in the Palais de Chaillot at 1, Place du Trocadéro, Paris, France. It is open daily except Tuesday, 1 January, 1 May and 25 December; an admission fee is charged for the permanent and temporary collections. However there is free admission to those under 18, 18-25 year olds who are EU citizens or students, primary and secondary school teachers, Paris Museum Pass holders and for everyone on the first Sunday of the month.