Turn right in the Rue Vésale (Old sub-station) then in the Rue de la Collégiale on left. Continuer in the Rue M. Peter at the opposite side of the avenue. Turn right in the Rue de la Reine Blanche. Continue in the Rue des Gobelins , au 3bis , Old Orangery dating of 1686 , at numbers 17-19, château de la " Reine Blanche " (dating of the 15th century) and old gate . Turn left in the Rue Gustave Geffroy then on left in the Rue Berbier de Mets (Old bed of the Bievre).

On left , Manufacture des Gobelins (dating of 1441 , was along the Bievre). Walk along the "Mobilier National" (Mobilier pour les ministères). Enter on right in the Square René le Gall (Build in 1938 above the Bièvre).

Turn left in the Rue Vulpian then on left in the Rue Le Dantec on the other side of the Bd Auguste Blanqui. Turn right in the Rue Barrault. Make a roundtrip on right in the Rue Daviel. at number 10 , Petite Russie and Petite Alsace (Houses built in 1912 for social houses). On the other side of the street , Villa Daviel. Turn right in the Rue Barrault then on left in the Rue Michal. We arrive at the Butte aux Cailles (Typical place).