Modern Marvels

Careful design mixed with cutting-edge technology has made Las Vegas an intoxicating, neon oasis in the middle of a desert. Tour the magnificent casinos of Las Vegas' storied strip.

During the depths of the Depression, the Tennessee Valley Authority was a massive public works project that took a 40,000 square mile river basin and turned it into a model of industrial progress.

Construction of the second-longest suspension bridge in the Unites States took 25 million man-hours and 80,000 miles of cable to complete but the cost in human life proved high.

From the first well in Pennsylvania to the gushing Spindletop and modern supertankers, the story of oil is the story of civilization as we know it.

The domed structure is one of the earliest forms of shelter. We explore how engineers have enlarged and transformed the ancient concept to build spectacular structures: domed sports stadiums.

Whether underwater, blasted through solid rock, or negotiating the shifting strata of earth's crust, we explore the design and engineering of famous tunnels-and the motivation behind them.

From Alexander Graham Bell's crude creation to today's high-speed wireless networks, explore the past, present and future of the telephone. Revisit the race between Bell and rival Elisha Gray.

Take a look at the inventions that have revolutionized society as we know it: computers! They began as behemoths which weighed over 2 tons.

A look at the history of photography beginning as early as the eleventh century, including the advancements by Niepce and Daguerre in the 19th century and George Eastman in the 20th century.

Advances in technology allow designers of roller coasters to test the limits of the human body.