Recommendations for things to see in Milan, Italy?

[Old Crank]

It looks like we will be going there for 2-4 days in a week or 2. I can look up places to see on the web and get the touristic points. Not that all of those aren't worth seeing. It might be nice if some of you had places you thought might be of more interest from a photographic view point. Any ideas would be welcomed.

[bucolic_frolic]

1. Take your pic

Merchants Square, Sforzesco Castle, Canal, Soldiers Monument,

Basilica o S. Ambrogio, S. Maria delle Grazie Church, Da Vinci's Last Supper,

La Scala, Vittorio Emanuele Gallery, Duomo Spire and Piazza

Not that I've been there, but I do recall visitors mentioning S. Maria delle Grazie Church, Da Vinci's Last Supper,

La Scala, Vittorio Emanuele Gallery

And surely shouldn't pass up https://www.headout.com/blog/duomo-milan/

[Old Crank]

2. The DAVinci would be a great one to see

It might not be too mobbed in mid Dec.
Thanks