I was in Washington for a field trip with a few students recently, and I extended the trip to include some time there with my wife. We met in DC in the early 1990s, and neither of us had been back since. So it wasn't much of a sketching trip, but I still managed a few drawings. The first is from the National Building Museum, the second from Dupont Circle, and the last is a sketch of a sculpture in the National Portrait Gallery.
3 hours ago