This was on the 2 hour walking tour of Historic Milan in our DK eyewitness Milan book, and it was one of the highlights. You just don't expect to see such an old church in such an unusual setting- freestanding Roman columns right outside and modern shops just a block away. Lots of beautiful art inside if you are dressed for seeing churches (cover elbows and knees). Nice park around it. Take a few minutes to sit in the courtyard and people watch. Read the history inside if you have time. Amazing that it's still standing.
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