Bois de Boulogne was designed by Baron Haussmann. Bois de Boulogne is a huge park in 16 th arrondissement. There are Jardin d’Acclimatation that provide fun for the whole family, the excellent Musée National des Arts et Traditions Populaires; the beautiful floral displays of the Parc de Bagatelle; and the racecourses at Longchamp and Auteui. Also there's a riding school, a bowling alley, bike rental (for which you'll need to leave your passport as security) at the entrance to the Jardin d'Acclimatation and 14km of cycling routes; and boating on the Lac Inférieur. The wildest, part for walking is towards the southwest corner.