United States national parkways

National parkways are protected scenic roadways, part of the United States National Park System.

Mid-Atlantic

 * (Baltimore, Maryland-Washington, D.C.)
 * (Montgomery County, Maryland–Washington, D.C.), originally part of the George Washington Memorial Parkway
 * (Prince George's County, Maryland-Washington, D.C.)
 * , Anacostia, Washington, D.C.
 * (Washington, D.C.)

South

 * (North Carolina-Virginia)
 * (Virginia)
 * (Tennessee)
 * (Mississippi-Alabama-Tennessee)
 * , Virginia
 * , Glen Echo &mdash; Former amusement park, now a site of arts and crafts, educational programs and folk dancing.
 * , McLean
 * , McLean
 * , Arlington &mdash; A wooded island in the Potomac River just off of Arlington, with a memorial to Theodore Roosevelt at its center.

Rocky Mountains

 * , Wyoming