Avenue Louis Bertrand is today a listed historical site, and it has always been considered one of the most beautiful avenues in Brussels. This guided tour explains how this major urban planning project was conceived in the early twentieth century, the support of the local town council for top-quality architecture and the role played by artists in its embellishment, as well as more recent developments such as the Brusilia tower. The Josaphat Park, the “green lung” of Schaerbeek, rounds off this brief catalogue of belle-époque architecture.