sentences:  In particular, Buls was a steadfast defender and admirer of the Mont des Arts and the Grand Place, now a UNESCO World Heritage site, successfully proposing the 1883 city ordinance protecting the façades of the Grand Place buildings and providing funds for their restoration which took place between 1883 and 1923.In 1899, the architects of Brussels who had been involved in this restoration work paid for a memorial commemorating Buls, designed by Victor Horta and executed by Victor Rousseau, to be placed in the rebuilt "L'Etoile" or "De Ster" house on the Grand-Place.At the reopening of the restored Town Hall, Buls greeted Leopold II in Dutch, and the King replied in the same language, which was unusual at the time.