10 Modern Marvels That Changed America

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.

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.

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.

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!

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.

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

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

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