Piazza della Cisterna, also known for hosting the “gelato world champion” ice cream store! I tasted it after the sketch! One more of Khan sketches, on his 1928-29 trip.
I did this sketch last September at the astonishing San Salvatore, a romanesque-style, former basilica church located in Spoleto, Umbria. The church-keeper told me he would close the church in 5 minutes when I was thinking on making the sketch, so I had to do a really fast one!