Inaugurated in 2014 with the official program called Primeira Parede Livre (first free wall), it was the first of several artistic interventions commissioned by Porto city hall and marked a turning point on the city's policy. One part of the 250 m2 wall is painted with the faceless, round-shaped figures by Hazul. Because the trees have grown the piece is more difficult to see in spring and summer when the trees have leaves.