10 That Changed America

A whirlwind tour of 10 engineering feats that made our civilization possible: from the Erie Canal and Eads Bridge, to the Holland Tunnel and Hoover Dam. Find out which 10 modern marvels made the list.

Amtrak still operates passenger trains over portions of the original Transcontinental Railroad route. Even today, navigating that treacherous path can present challenges for engineers.

The Eads Bridge proved that steel could be used for large-scale building projects. The unconventional idea that steel could support such a massive structure came from an unconventional character: an amateur engineer named James B. Eads.

Tour boat operator Jerry Gertz explains the crucial and often forgotten role played by the mules that pulled barges and boats along the Erie Canal in its early days.

A whirlwind tour of 10 engineering feats that made our civilization possible: from the Erie Canal and Eads Bridge, to the Holland Tunnel and Hoover Dam. Find out which 10 modern marvels made the list!

Though considered futuristic when first constructed, much of the Interstate Highway System today is in need of repair.

A whirlwind tour of 10 engineering feats that made our civilization possible: from the Erie Canal and Eads Bridge, to the Holland Tunnel and Hoover Dam. Find out which 10 modern marvels made the list.

Geoffrey takes viewers to the top of the Roebling Bridge to learn about the engineering feats that made it possible.

The AIDS Quilt redefined what a monument could look like. It’s not made of stone or steel, it’s not made by a single artist, and it’s not even located in a single place.

A whirlwind tour of 10 monuments that mark key moments in American history: from the Statue of Liberty and Mount Rushmore, to the Vietnam Veteran’s Memorial and the AIDS Quilt. Find out which 10 monuments made the list.

Lula Red Cloud, great-great-granddaughter of Oglala Lakota Chief Red Cloud, explains what she sees as the relevance of honoring Lakota warrior Crazy Horse with a larger-than-life monument in the Black Hills of South Dakota.

Peek inside the warehouse in Tucker, Georgia, where AIDS Memorial Quilt panels are stored and repaired in between nationwide exhibitions.