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Monuments | Oklahoma City National Memorial
6:23
Commemorates the deadliest terrorist attack on American soil prior to 9/11.
Streets | Boston Post Road
9:13
Travel the highway that helped win the American Revolution.
Streets | National Road, Cumberland, MD to Vandalia, IL
5:04
The first road ever paid for by the federal government, which paved the way for settlers.
Streets | St. Charles Avenue, New Orleans, LA
4:18
Ride the streetcar that helped launch a wave of suburban development across the nation.
Streets | Broadway, New York, NY
5:32
The Native American and Dutch roots of the first street in America featuring mass transit.
Modern Marvels | Reversal of the Chicago River
5:18
Chicago's greatest engineering feat was saving itself from it's own sewage.
Modern Marvels | Hoover Dam
5:13
Designed to provide water and power for the growing cities of Southern California.
Modern Marvels | Holland Tunnel
5:17
The first underwater tunnel for cars.
Modern Marvels | Interstate Highway System
4:46
The largest engineering project in human history that accelerated an exodus to suburbia.
Modern Marvels | Colorado River Aqueduct
5:05
Provides much of the drinking water for southern California.
Monuments | Vietnam Veterans Memorial, Washington, D.C.
5:55
A symbol of unity and reconciliation, conceived by one Vietnam veteran, Jan Scruggs.
Monuments | AIDS Memorial Quilt, Everywhere, USA
6:29
A 1,920 panel quilt that covered the National Mall commemorating victims of AIDS.
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