In the shadow of the gigantic Palace of Justice lies the old Marolles/Marollen Quarter (, , not to be confused with the ''Marolle'' that purists delimit to only seven streets). From the / to the Place du Jeu de Balle/Vossenplein, where a daily flea market has been held since 1873, along the / and the /, second-hand and popular shops have for some years given way to antique shops, marking a profound change to the neighbourhood. The Cité Hellemans, a remarkable example of early 20th-century collective housing complexes, was built on the site of the neighbourhood's many squalid cul-de-sacs. The Rue Haute, one of the longest and oldest streets in the city, follows the course of an old Gallo-Roman road, and runs along Saint Peter's Hospital, built in 1935 on the site of a lepers' hospital, to end at the Halle Gate, the only survivor of the series of gates which allowed passage inside the second walls of Brussels.