Probably one of the most overlooked sights in Milan. Torre Branca is located inside Parco Sempione, close to Triennale. The tower was built in 1933 by Gio Ponti and is 108m high.
Milan doesn't have natural viewpoints, so this is certainly one of the best to have a one of a kind view of the city. You have the park below your feet, and can spot iconic sights like Castello Sforzesco, Duomo, Garibaldi area and so much more.
I would highly recommend to go here, it's such a great view