Under the supervision of sculptor Gutzon Borglum, miners and quarrymen carve the faces of four U.S. presidents into the Black Hills of South Dakota, paying tribute to the first 150 years of American history.
Showing1to20of80results
San Francisco's Oakland Bay Bridge features a unique double suspension.
Two ribbons of concrete span the largest inland body of water in Louisiana, forming the world's longest automobile bridge.
The history of one of the world's most famous bridges, London's Tower Bridge when it was erected in 1892, it became a postcard image of London, but the famed gothic towers of this pioneering steel structure, sheathed in stone, are purely decorative.
The story of the construction of America's national highway system, from its beginnings in 1912, which it was conceived by auto and headlight tycoons, to its completion in 1984, when the last stoplight was removed and buried.
Earth's non-human inhabitants use tools, build structures, create traps, and farm Egyptian vultures crack ostrich eggs with stones, chimpanzees extract termites with tool kits, prairie dogs dig subterranean homes, and ants raise aphid herds.
Join us for a high-speed look at police pursuits in an adrenaline-filled hour focused on the history and evolution of the technologies that give law enforcement the upper hand when pursuing bad guys.
The construction of a terrorist-proof safe room, and how windows might someday act as biological weapons detectors what technology can do to protect civilians, and how they can use technology to protect themselves.
Under the supervision of sculptor Gutzon Borglum, miners and quarrymen carve the faces of four U.S. presidents into the Black Hills of South Dakota, paying tribute to the first 150 years of American history.
Changing the way people think about coin-operated machines exploring the ways people spend their quarters, dimes, nickels and pennies every day.
Drilling spirals through ground, rock, earth, ice, steel, and stone explore water drilling in New Mexico desert, oil drilling in Gulf of Mexico, deepest hole quests, ice core climate recovery, tunnel boring machines, and laser precision drilling.
Stories of those who believed in dreams and defied the commonplace with their extraordinary creations covering some of the world's architectural and engineering structures, scientific inventions, and social wonders.
It's the unsung essential of modern life canning is the method of preserving and packaging food, without which civilization would never have ventured beyond the local food supply.
Making breakfast on the USS John C. Stennis.
The beverage coffee originates in Ethiopia more than 1,000 years ago.
The sugar industry developed through Caribbean slavery and British control desires sugar played critical roles in American independence while modern Hawaiian plantations process cane stalks into raw sugar, corn syrup, and various sweetener forms.
The history of soft drinks the production process at Dr. Pepper, the world's third-largest soft-drink supplier the Gatorade sports drink energy drinks the roots of ginger ale and root beer.
Changing the way people think about coin-operated machines exploring the ways people spend their quarters, dimes, nickels and pennies every day.
Drilling spirals through ground, rock, earth, ice, steel, and stone explore water drilling in New Mexico desert, oil drilling in Gulf of Mexico, deepest hole quests, ice core climate recovery, tunnel boring machines, and laser precision drilling.
Stories of those who believed in dreams and defied the commonplace with their extraordinary creations covering some of the world's architectural and engineering structures, scientific inventions, and social wonders.
It's the unsung essential of modern life canning is the method of preserving and packaging food, without which civilization would never have ventured beyond the local food supply.
Showing1to20of80results
