Just going in, standing and getting out is not enough for this cathedral! Be sure to take a tour of the entire cathedral with a visit to the observation deck! The temple is simply fascinating, an hour and a half of the guide's story about history, legends, architecture and people flew by like a flash
It is very interesting both in the museum itself and on the viewing platforms of the cathedral. We were back in January of the 20th year. It was wonderful.
What can I say here is that you need to see it: from above, from inside, from all sides. Details - you can only look at the stained glass windows all day.
A very beautiful place, I recommend definitely going inside this beautiful building and climbing to the roof. Believe me, we do not forget this, even if it is not your first time in Milan.