National Museum of the Palazzo Venezia. Apparently it has an extensive lace collection, documented in 2014 in "Storie di Abiti e Merletti', and the collection is in need of restoration. Not sure how students can access the collection.
The view through the keyhole on the gate of The Knights of Malta headquarters on Aventine Hill, Rome. I found this by accident when I was lost in the maze surrounding my hotel. Getting lost in Rome is wonderful.