The Bagatelle Park, located in the heart of the Bois de Boulogne, is one of the four poles of the Botanical Garden of the City of Paris. Created in 1775, the park and its castle were built in 64 days following a bet between Queen Marie-Antoinette and her brother-in-law, the Comte d'Artois. The Bagatelle Park is a place for walking and relaxing. In addition to the huge trees and varied flora, small bridges, rocks, caves, water mirrors and artificial waterfalls add charm and romance to the place. The nineteenth century Chinese pagoda is one of the curiosities of the park. The visitor especially admires a magnificent rose garden of 10,000 roses from 1,200 different species. The park regularly hosts exhibitions and events, and organizes classical music concerts in summer.