From Piazza Gae Aulenti take the lift or escalators and go down to level minus one, turn left and cross via Fratelli Castiglioni (crossing with uneven ground and tram rails). After walking through the "Anna Politkovskaja" gardens, cross via De Cristoforis (paved crossing in good condition) and take Corso Como (about 200 m long, this is a pedestrian area, with cobblestones slightly disconnected in the centre and paved paths in good conditions to the sides).
Corso Como is full of restaurants, pizzerias, lounge bars and discos. At 10, Corso Como, on the first floor of a former industrial building typical of the Milanese architecture of the late 1800s, there is the "Galleria Carla Sozzani", an exhibition space dedicated to photography, art, design and architecture.
At the end of Corso Como, you can see the gate of Porta Garibaldi which stands in the middle of Piazza XXV Aprile. It is one of the six main gates of Milano, built within the Bastioni, the walls that surrounded the city during the Spanish domination. The building on the left of the square, formerly the Teatro Smeraldo, is now occupied by Eataly, the temple of Italian food and wine of excellence.