We walked to St. Roche's and Martine's, near the brink of the Tiber, a large hospital for both sexes. Hence, to the Mausoleum Augusti, between the Tiber and the Via Flaminia, now much ruined, which had formerly contended for its sumptuous architecture. It was intended as a cemetery for the Roman Emperors, had twelve ports, and was covered with a cupola of white marble, environed with stately trees and innumerable statues, all of it now converted into a garden. We passed the afternoon at the Sapienza, a very stately building full of good marbles, especially the portico, of admirable architecture. These are properly the University Schools, where lectures are read on Law, Medicine, and Anatomy, and students perform their exercises.
Hence, we walked to the church of St. Andrea della Valle, near the former Theater of Pompey, and the famous Piccolomini, but given to this church and the Order, who are Theatins. The Barberini have in this place a chapel, of curious incrusted marbles of several sorts, and rare paintings. Under it is a place where St. Sebastian is said to have been beaten with rods before he was shot with darts. The cupola is painted by Lanfranc, an inestimable work, and the whole fabric and monastery adjoining are admirable.