#1.
14390 Air & Space Museum Parkway Chantilly, VA
The Udvar-Hazy Center is the Smithsonian Institution's National Air and Space Museum companion center near Dulles International Airport. The 760,000-square-foot hangar facility has 125 aircraft and... More on VisitLoudoun.org
The kids couldn't touch the planes, enter in the spaceships, etc. The exhibits weren't very good for adults either-most of the planes I wanted to see were downtown e.g. More on GoCityKids

#2.
3650 Historic Sully Way, Chantilly, VA 20151
Sully was the home of Richard Bland Lee, uncle of Robert E. Lee, and northern Virginia's first representative to congress. He lived here with his wife, Elizabeth Collins Lee, from 1794-1811. During... More on Virginia.org
Dedicated to preserving and sharing the history of the Lee family and of Fairfax County from the early 19th century to the present, this park features original outbuildings, gardens, a representati... More on DogFriendly.com

#3.
217 Edwards Ferry Road, Leesburg, Loudoun County, Virginia
In 1941 Gen. George C. Marshall and his wife Katherine bought Dodona Manor, an early-19th-century manse, w... More on Frommers
Wonderful place for photos. Great place for a picnic. Great staff. Lots of history. Cheap date ... More on TripAdvisor

#4.
217 Edwards Ferry Road, Leesburg, Loudoun County, Virginia
This is the only home that General George C. Marshall ever owned, and is still furnished with the general's belongings exactly as it looked during World War II. The George C. Marshall International... More on Heritage
Very nice historic home of General Marshall. The children from General Marshall's second marriage donated most of the furnishings and personal items that are on display. ... More on TripAdvisor

#5.
206 E. Market St., Leesburg, VA 20176
A history and genealogy library owned and operated by the Town of Leesburg. Collections focus on Loudoun County, regional and Virginia history, genealogy, military history ... More on Visitloudoun.org
A history and genealogy library owned and operated by the Town of Leesburg. Collections focus on Loudoun County, regional and Virginia history, genealogy, military history with special emphasis on ... More on VisitLoudoun.org

#6.
102 The Plains Road, Middleburg, Loudoun County, Virginia
The library is a research center for horse and field sports. More on MuseumsUSA.org
A research center that preserves and shares the art, literature, and culture of horse and field sports. Rotating exhibits. More on VisitLoudoun.org

#7.
101 Independance Avenue, S.E., Washington, DC, 20540
The Library of Congress is the de facto national library of the United States and the research arm of the U... More on En.wikipedia.org
It was a great experience and will worth the time. More on Yahoo! Travel

#8.
8600 Rockville Pike, Bethesda, MD
Largest medical library in the world; historic/rare book department, exhibits and tours. More on Search.visitmaryland.org
Our facility is the world's largest medical library, and along with having a fascinating and valuable collection of manuscripts and other treasures, in recent years we have produced successful exhi... More on MuseumStuff.com

#9.
1025 F Street, NW, Washington DC, District of Columbia
Come face to face with some of the worlds biggest celebrities - are they real, or are they waxworks? More on familydaysoutusa
The museum is open at 10am ev More on igougo

#10.
201 E. Capitol Street, Washington DC, District of Columbia
View the world's largest collection of original Shakespeare manuscripts and books. This attraction ... More on Weather.com
We had a wonderful free tour with a very knowledgeable guide. More on TripAdvisor
