I really like Milan Gothic Cathedral, which is also the second largest Catholic church in the world, ranked first in the Vatican, one in the south and one in the north, which is still interesting.
People who know the history of Europe should know that it took 500 years for this church to be built. If I remember Napoleon correctly, it was the coronation ceremony held here, which is also one of the must-visit points in Milan.
My favorite street in Milan is Chinatown, and the second place is duomo Cathedral. Basically, I go to Milan once a year to attend the revival meeting held by the Christian Church.