Via Roberto Lepetit 33,
Ostello Bello Grande is only 100 meters from Central Train Station, where you can find the Airport shuttles to Linate, Malpensa & Orio Al Serio-Bergamo airport. the green and yellow subway lines while the red one is only few blocks away; buses and tram to the city center and, of course, high speed trains to all the most important italian cities like Venice, Florence, Rome, Naples.
The Duomo square is 3 subway stops or a 20 min walk.
Milan's Corso Buenos Aires shopping street is just 2 min walk