I wonder if Raphael had the Pantheon in mind when he composed this picture? Very likely, for he must have seen it; and he had a wonderful gift for receiving impressions and making use of them. And this building, both for its unusual shape and particularly from that wonderful opening, carrying one’s imagination upward from finite space to the infinite spaciousness of sky, is peculiarly impressive. It fits in also with the conception that Raphael seems to have formed of the subject which the picture commemorates.