The Fondation Pierre Gianadda rises in bold geometric shapes around the Roman ruins on which it is built. Recent retrospectives have spotlighted works by Renoir and Monet, and the permanent holdings include works by van Gogh, Cézanne, and Picasso. The Musée Gallo-Romain displays Gallo-Roman relics excavated from a first-century temple: striking bronzes, statuary, pottery, and coins, though descriptions are only in French and German. A marked path leads through the antique village, baths, drainage systems, and foundations to the fully restored 5,000-seat amphitheater, which dates from the 2nd century. In the gracefully landscaped garden surrounding the foundation, a wonderful Parc de Sculpture displays works by Rodin, Brancusi, Miró, Arman, Moore, Dubuffet, and Max Ernst. There's also a sizable Musée de l'Automobile, which contains some 50 antique cars, all in working order. They include an 1897 Benz, the Delaunay-Belleville of Czar Nicholas II of Russia, and a handful of Swiss-made models. You may also spot posters for concerts by international classical stars such as Cecilia Bartoli or Itzhak Perlman—the space doubles as a concert hall.