
Modern Marvels
The oldest flag manufacturer; the last US athletic shoe factory; strange alternative transportation.

The oldest flag manufacturer; the last US athletic shoe factory; strange alternative transportation.

The Chesapeake Bay Bridge and Tunnel stretches 17 miles connecting Virginia's easternmost landmass.

Bridges play a key role in the human quest to connect and unify.

One of the longest suspension bridges in the world connects upper and lower peninsulas of Michigan.

The 1,522-mile-long Alaskan Highway takes 11,000 soldiers to build.

The Akashi Kaikyo Bridge's main span is 50 percent longer than that of the Golden Gate.

The Erie Canal is responsible for making New York City a commercial capital.

During the 19th century, transcontinental railroads link California to the East.

Two ribbons of concrete span a body of water in Louisiana, forming a bridge.

Communists erect the wall to stop the flow of refugees to the West.

Skyscrapers; Empire State Building; Sears Tower; World Trade Center.

The art deco Chrysler Building stands out in the New York skyline.

Data lines; power; plumbing; photovoltaics; conserving energy.

The butcher's craft is a fusion of knives and technology, old world skills and modern day tools.

The oldest flag manufacturer; the last US athletic shoe factory; strange alternative transportation.

The Chesapeake Bay Bridge and Tunnel stretches 17 miles connecting Virginia's easternmost landmass.

Bridges play a key role in the human quest to connect and unify.

One of the longest suspension bridges in the world connects upper and lower peninsulas of Michigan.

The 1,522-mile-long Alaskan Highway takes 11,000 soldiers to build.

The Akashi Kaikyo Bridge's main span is 50 percent longer than that of the Golden Gate.