Rennes is the capital city of Brittany, northwest France. It's known for its medieval half-timbered houses and grand Rennes Cathedral. Parc du Thabor includes a rose garden and aviary. South of the Vilaine river, the Musée des Beaux-arts displays works by Botticelli, Rubens and Picasso. The Champs Libres cultural center houses the Musée de Bretagne (Brittany Museum) and Espace des Sciences, featuring a planetarium.