This is a little painting of the 25 April Bridge, which spans the Tagus River between Lisbon, and the Setubal Peninsula. In this view, we're looking northwest, toward Lisbon.
Lisbon was built on seven hills. On the easternmost of those, you'll find what remains of Saint George's Castle, which is worth a visit in and of itself. Of greater interest to me, though, are the narrow alleys just outside the castle wall. Here houses, built more to conform the contours of the land than to satisfy any sense of squareness, run together at odd angles, and throw peculiar shadows everywhere.