Until the 19th century, Brussels ended at the boundary of the second city walls, which today marks the route followed by the inner ring road. The wide-scale urban development associated with the explosion in population in the capital of the new country of Belgium quickly reduced the space set aside for nature. The intervention of Léopold II and his faithful urban planning architect, Victor Besme, enabled the development of green spaces and the creation of new roadways, of which Avenue Louise/Louizalaan is a shining example. While it is an essential component of mobility today, it has not always been an urban motorway. Formerly a tree-lined promenade fittingly punctuated by Jardin du Roi, it brought the chic and sophisticated of the Belle Époque era to the edge of La Cambre Wood via a new neighbourhood of prestigious townhouses. An immersion in the suave sophistication of Brussels’ rich past that will leave a lasting impression.