BBPR's 1958 Milan tower — mushroom-shaped silhouette referencing medieval Lombard towers.
From Wikipedia
The Torre Velasca is a skyscraper built in the 1950s by the BBPR architectural partnership, in Milan, Italy. The construction was achieved in 1958, and inaugurated in 1961. Measuring 106 metres in height to the roof, the tower has 26 stories. The building is considered one of the few Italian examples of post-rationalist brutalist architecture.