Since 2009, the artwork “Longitudi 1” by artist Bogomir Ecker has adorned a corner of Place Flagey in Ixelles. Standing 13 meters high and made of yellow aluminum sheet metal, residents and passersby wonder about its meaning or symbolism, its usefulness or function, its aesthetics or artistic value... What is their relationship to this work and to other monuments around the square? What determines this relationship and what does it tell us about ourselves and our relationship to public space?