Folie Saint James

It was the work of landscape architect François-Joseph Bélanger, who had designed the garden of the Bagatelle for the Comte d'Artois.

"[1] The main attraction of the garden was a collection of forty-eight fabriques, or architectural constructions, placed on both sides of the avenue de Longchamp, and connected by two tunnels.

The fabriques included kiosques, a Chinese pavilion used an icehouse, temples, a thatched cottage, and an enormous artificial rock formation created of blocks of stone carried in carts from the Forest of Fontainebleau.

Inside the artificial rock hill was a winding tunnel encrusted with minerals and crystals, and several grottoes, as well as a bathing room with a vaulted ceiling and divans.

There is a rock built in front of the house, or rather an arch made of great blocks of stone over which water seems to flow.