This spring, the Château La Coste near Aix-en-Provence has inaugurated a new pavilion designed by the great Brazilian architect, Oscar Niemeyer. Developed from 2010 to 2013, the project is the last to have been completed by the master of modern architecture and his last gift to France, a country he cherished. Set in the midst of a vineyard, this pavilion all in curves plays host to exhibition space and an auditorium. Well worth a visit. 2 740, Route de la Cride. Le Puy-Sainte-Reparade. www.château-la-coste.com.