Villa Farnesina is a small frescoed villa on the Trastevere bank of the Tiber, and it is almost always empty. Raphael painted Galatea riding the sea on a shell in a ground-floor room, and designed the loggia next door, where Cupid and Psyche float across a ceiling made to look like an open pergola. Giovanni da Udine painted the garlands framing it in 1518, packing about a hundred and seventy identifiable plants into them. Upstairs Peruzzi painted a room whose walls open into a colonnade with views of Rome beyond.
Baldassarre Peruzzi built the house between 1506 and 1510 for Agostino Chigi, a banker from Siena who lent to popes and kings, laying it out as two low wings around a loggia open to a garden. It went up on a brand-new street the pope had just cut along this bank. Chigi hired the best painters alive because the house was built to be seen by the people he did business with. The garden it opens onto is still there, and you can sit in it.