Map Directions: Closest Metro stop: Van Ness/UDC (red line) From National Airport, Northern Virginia (Arlington, Alexandria, Springfield via King Street, Duke Street, Glebe Road, Braddock Road, Van Dorn Street, or Edsall Road) Driving Directions: Take I-395 North to Route 1 (Route 1 is the 14th Street Bridge). Merge to the far left lane on the bridge and follow the signs for 14th Street. Take 14th Street for 1 mile. Turn left onto K Street. Continue on K for 5 blocks. Turn right onto Connecticut Ave. Follow Connecticut Ave. for 1 mile. Cross over the William Taft Bridge. Make a right turn onto Brandywine Rd. The entrance is on left. From Dulles Airport, Fairfax, Herndon, Reston, Sterling Driving Directions: Follow the signs to Interstate 66 east to Washington. Follow I-66 to the Theodore Roosevelt Bridge (US Route 50). Take the Constitution Ave exit off of the bridge. Continue on Constitution for 6 blocks and make a left turn onto 17th Street. This will change to Connecticut Ave. Continue on Connecticut Ave. for 1 mile. Cross over the William Taft Bridge. Make a right turn onto Brandywine Road. The entrance is on the left. From areas North and East (Montgomery and Prince George's County Maryland, Baltimore) Driving Directions: Take I-95 South to I-495 West. Take Exit 33, Connecticut Ave. Southbound. Continue on Connecticut Avenue for about 6.5 miles. Turn left onto Brandywine Road. The entrance is on the left. From areas West Germantown, Gaithersburg Maryland Driving Directions: Take I-70 East to I-270 South to I-495 East. Take exit 33 Connecticut Ave. South. Continue on Connecticut Ave. for about 6.5 miles. After passing the National Zoo, make a left onto Brandywine Road. The entrance is on the left. Ê