HISTORY: Opened in 1951, this is the second-longest twin suspension bridge in the world and a memorial to American soldiers who served in 20th-century wars. The 1 billionth vehicle drove across in 2000.
HISTORY: Lincoln was born at the home on Feb 12, 1809. A granite-and-marble Beaux Art memorial stands at the spot, containing a "symbolic" birth cabin. The memorial was dedicated in 1911 by President Taft.