
Modern Marvels
Trans-Siberian railroad provokes war, crosses treacherous terrain.

Trans-Siberian railroad provokes war, crosses treacherous terrain.

Battlefield engineering may be warfare's most important yet least recognized aspect of combat.

A daring band of infantry soldiers uncovers secret enemy arms and intelligence caches.

Dynamite blasts out the natural resources that have built our modern world.

Fire threats: oil blowouts, forest fires; WWII London firefighter.

Meet the loggers who started it all, and find out what happens on the journey from stump to sawmill.

Visiting the U.S. Library of Congress to explore the contents of secret vaults.

Satellites and the global positioning system spark a revolution in cartography.

From subsequent prosthesis in ancient Hindu writings, the chronical history of prosthetic devices.

To run faster, jump higher and play longer - the ultimate goal of all athletes.

Traces physical fitness' role in the health of the individual and society.

Alexander Graham Bell races Elisha Gray to patent the telephone.

Glass is versatile material for skyscrapers, containers, vision aids, communication, and art.

Adam visits legendary heavy equipment manufacturer: John Deere.

Hydraulics open the door for the Industrial Revolution.

The world's most-powerful elevators, a monster mine machine and the world's strongest mountain bike.

The MegaFly, a giant ram-air parachute; boron carbide body-armor; the monster truck Bigfoot.

Strength measurement: explore rope, diamond, tugboat power from Spectra fiber to Lexan materials.

Meet crime fighters vs fiery killers: Fire Marshall Lalo Torres & Richard Garner.

Meet the loggers who started it all, and find out what happens on the journey from stump to sawmill.