More than 50 years after its construction, the Golden Gate remains one of the world's great engineering marvels. It took 25-million man-hours and 80,000 miles of cable to complete the cost in human life proved even greater.
Named one of the seven engineering wonders of the modern age, the Chesapeake Bay Bridge and Tunnel connects Virginia proper with its easternmost landmass stretching 17 miles across the historic bay, the structure includes highways and islands.
From amazing ancient Roman aqueducts and arch bridges, romantic Renaissance spans, 19th-century railroad crossovers, to monumental marvels of our time, bridges played a key role in the human quest to connect and unify.
The Mighty Mac connects the pastoral northern mainland of Michigan with the state's heavily forested Upper Peninsula and stands as a testament to the dreams, determination, and hard work of a small few who created a true masterpiece.
A travel from British Columbia north through the Yukon Pass on their way to Fairbanks, Alaska, thanks to one two-lane roadway, the 1,522-mile long Alaska Highway.
Bridges are the lifeline of Japan since the 1930s, the island nation has dreamt of linking its many parts as a whole WWII diverted the resources needed to accomplish this, and only since 1960 has the dream moved again, slowly, toward reality.
Begun in 1817, the Erie Canal was an engineering wonder of 363 miles of water highway linking the western frontier to the Atlantic seaboard it took eight years to construct and thousands of hours of brutal labor.
During the 19th century, transcontinental railroads link California to the East.
Two ribbons of concrete span the largest inland body of water in Louisiana, forming the world's longest automobile bridge.
Named one of the seven engineering wonders of the modern age, the Chesapeake Bay Bridge and Tunnel connects Virginia proper with its easternmost landmass stretching 17 miles across the historic bay, the structure includes highways and islands.
From amazing ancient Roman aqueducts and arch bridges, romantic Renaissance spans, 19th-century railroad crossovers, to monumental marvels of our time, bridges played a key role in the human quest to connect and unify.
The Mighty Mac connects the pastoral northern mainland of Michigan with the state's heavily forested Upper Peninsula and stands as a testament to the dreams, determination, and hard work of a small few who created a true masterpiece.
A travel from British Columbia north through the Yukon Pass on their way to Fairbanks, Alaska, thanks to one two-lane roadway, the 1,522-mile long Alaska Highway.
Bridges are the lifeline of Japan since the 1930s, the island nation has dreamt of linking its many parts as a whole WWII diverted the resources needed to accomplish this, and only since 1960 has the dream moved again, slowly, toward reality.
Begun in 1817, the Erie Canal was an engineering wonder of 363 miles of water highway linking the western frontier to the Atlantic seaboard it took eight years to construct and thousands of hours of brutal labor.
During the 19th century, transcontinental railroads link California to the East.
Two ribbons of concrete span the largest inland body of water in Louisiana, forming the world's longest automobile bridge.
The technology behind the Vancouver 2010 Winter Olympic Games, including the bobsled run, ski jump and speedskating.
A 2000 Ford Taurus gets dissected to demonstrate the evolution of the automobile's major systems automotive historians and experts describe how cars have evolved and explain major advances.
The philosophy, architecture of today's U.S. prisons emerge from those of history.