This church located to the west of the Duomo in the area which once was the center of Milan. The has been founded in 379 and it’s one of the oldest survived churches of Italy. It’s named after the first Milan bishop who was buried in the church’s crypt.
In the medieval times Sant’Ambrogio could hold all city’s population. Imagine how small Milan was in those times. In the moments of dangers all Milanese were sheltering here.
Inside of the church you can find a lot of interesting artifacts. For example, roman times columns, mosaics and murals. The second chapel of the church has frescoes by Tiepolo.