Vera, our tourguide, was excellent. We learned so much about the Santa Maria delle Grazie church, the famous Last Supper, and the story of the creation of the painting itself.
The museum allows visitors for 15 minutes, which can go by quite quickly. The other painting across the room, by Montorfano, is also worth a look at.
Then we got to the Sforza castle, and we got to walk around the castle property, though the tour does not include entrance to the castle museum. I had no idea that this was one of the historic sites destroyed during World War II.
The reconstruction is quite impressive and we walked away much more familiar with the story of Milan.