Wright Brothers National Memorial, located in Kill Devil Hills, North Carolina, commemorates the first successful, sustained, powered flights in a heavier-than-air machine From 1900 to 1903, Wilbur and Orville Wright came here from Dayton, Ohio, based on Physical description

Informal tributes posted at the first, temporary memorial site in Shanksville, Pennsylvania, to those who perished on United Flight 93, which crashed during an attempt by passengers to recapture the plane, which had been hijacked by terrorists on 9/11/01 Physical description

Fort McHenry, the place where Francis Scott Key observed that the "flag was still there" and wrote the words to "The Star-Spangled Banner" following an engagement with the invading British during the War of 1812. Baltimore, Maryland Physical description:; 4 x 5 in. or smaller.

Washington Monument, Washington, D.C.

National Mall, Lincoln Memorial and Washington Monument, Washington D.C Physical description:. Notes: The Lincoln Memorial is an American memorial built to honor the 16th President of the United States, Abraham Lincoln. It is located on the National Mall in W

Washington Monument, Washington, D.C Physical description:. Notes: The Washington Monument is an obelisk near the west end of the National Mall in Washington, D.C., built to commemorate the first U.S. president, General George Washington. The monument, mad

National Mall, Washington, D.C Physical description:. Notes: The National Mall is an open-area national park in downtown Washington, D.C., the capital of the United States. The National Mall is a unit of the National Park Service, and is administered by the N

Aerial view of the World Trade Center taken a month before September 11, 2001

Washington Monument in Washington, D.C Physical description:; 4 x 5 in. or smaller. Notes: Title, date, and keywords provided by the photographer.; Digital image produced by Carol M. Highsmith to represent her original film transparency; some details may differ between the fi