I have always loved sunflowers. They're tall, bright yellow, and you can eat (or feed birds) the seeds.
Two weeks ago I visited the McKee-Beshers Wildlife Management Area in Poolesville, MD (still a rural area west of DC that runs along the Potomac River). There are 2 separate fields that are staggered sunflower plantings. It is a glorious place; a total of 48 acres!! of happy sunflowers...and even happier photographers!
At the end of the trip I took the long way home via White's Ferry. The ferry is just west of Poolesville and drops you off just south of Leesburg, VA. It's a short trip, but a fun alternative to highways and bridges.