"For a romantic treat on your next trip to Washington, D.C., rent a paddle boat and row out along the Tidal Basin for some of the best views of the Jefferson Memorial. Spring is the best time to visit, thanks to the stunning beauty of cherry blossom season, but this is a great destination at any time of year. When boat rentals stop for the winter, plan to take a walk around the basin instead of a paddle on it for equally impressive views." - Travel + Leisure Editors