Le Corbusier died of a heart attack at age 77 in 1965 after swimming at the French Riviera. At the time of his death in 1965, several projects were on the drawing boards; the church of Saint-Pierre in Firminy, finally completed in modified form in 2006; a Palace of Congresses for Strasbourg (1962–65), and a hospital in Venice, (1961–1965) which were never built. Le Corbusier designed an art gallery beside the lake in Zürich for gallery owner Heidi Weber in 1962–1967. Now called the Centre Le Corbusier, it is one of his last finished works.