Tondo is a footbridge in the center of Brussels that connects the offices of the Chamber of Representatives with its recent extension, the Forum building, on the other side of the street. The bridge was explicitly designed as a spatial element rather than a technical solution. Named after the Renaissance tradition of the tondo, a circular work of art, it is shaped like a ring and tucked between the facades of the two buildings. It offers a generous walk – a ‘detour’ – around an enclosed outer space, which also functions as an escape route and a meeting place. At the same time, the ‘detour’ allows the height difference between the buildings to be bridged by means of a single, accessible 4% slope.