The Old Town Hall dates from the 13th century. The palaeontology collections have been installed, since 1885, in the former Great Hall of the Municipal Council (1529–1823, then the Great Chamber of the Court of Appeal between 1823 and 1885), which includes beautiful wood panelling and a door carved by the woodcarver Pierre-Louis David, father of the famous Angevin sculptor of the same name, known as David d'Angers. Today, the office of the director, other working offices, the library and part of the reserves are housed in this building.