14390 Air and Space Museum Parkway, Chantilly, VA 20151, (703) 572-4118
Very cool (often forgotten) Smithsonian Museum - Free to enter, $15 to park for the day
Tons of SUPER COOL large airplanes from American History including the Discovery Space Shuttle!
Topgolf
20356 Commonwealth Center Drive, Ashburn, VA 20147, (703) 763-2020
One of our favorite spots! Golf for Aaron & Snacks for Rachel :)
Lansdowne Resort and Spa
44050 Woodridge Parkway, Leesburg, VA 20176, (703) 729-8400