Modern Marvels

Mark Seen

Grand Coulee Damn Dec 11, 1993 The world’s largest concrete dam–and the largest concrete structure in the world–lies on the Columbia River in the State of Washington. B uilt in 1931, it is also one of the largest hydroelectric power plants in the world.

Mark Seen

Grand Coulee Dam Dec 10, 1993 One of the world's largest concrete dams and largest concrete structures lies on the Columbia River in the State of Washington. Built in 1931, the Grand Coulee Dam is also one of the largest hydroelectric power plants. We'll explore this technological wonder.

Mark Seen

The Empire State Building Jan 22, 1994 The remarkable story of how the landmark New York City skyscraper was constructed during the depths of the Depression. Requiring 10 million bricks and 60,000 tons of steel beams and using a revolutionary technique to hold the steel girders in place–hot rivets–the world’s tallest building was completed four months ahead of schedule.

Mark Seen

The Empire State Building Jan 21, 1994 The Empire State building rose to become the world's tallest man-made structure at a time when dreams were in short supply. Planned during the 1920s, construction was almost grounded by the Depression until the "Cathedral of Dreams" came to symbolize the indomitable American spirit. "Two stories a day" became the mission. Up went the rivets, the steel and the fearless men. In just two years the miracle of engineering was finished, justifying a nation's belief in itself. Here is the colorful story of this beloved building, including the innovations it inspired, and its enduring popularity today. From the first plans to the final rivet, explore the incredible story of the EMPIRE STATE BUILDING.

Mark Seen

The Panama Canal Jan 2, 1995 Chronicles one of the most incredible engineering feats of all time: construction of the 51-mile canal that took 10 years to build and employed over 40,000 workers, 6,000 of whom died of yellow fever, malaria, and other horrors. An earlier, 9-year attempt by the French ended in failure and cost 20,000 lives.

Mark Seen

The Capital Threat Feb 10, 2016 Nature attacks Washington DC and Los Angeles. The fate of the Constitution and other monuments. Wilted palm trees help spread a massive inferno, while another capital emerges in the Pacific Ocean.

Mark Seen

Cruise Ships Jan 23, 1995 A large machine turned water city, cruise ships are exciting and new.

Mark Seen

The Railroads That Tamed The West Feb 4, 1996 The year was 1869 and America had just completed the greatest building achievement in its history--the Transcontinental Railroad. A thin ribbon of steel and wood now connected East and West. But the fledgling country now faced an even greater challenge--how to harness the awesome potential of the railroad to tame the still wide-open and wild West.

Mark Seen

Balloons Feb 5, 1996 Join us for a buoyant trip through the history of balloon flight and a tribute to the fearless pilots and engineers brave enough to push the limits of balloon technology into the next weather front, or the next frontier. We’ll demonstrate their diversified applications and talk to pioneers who designed and flew them.

Mark Seen

The Transcontinental Railroad Feb 12, 1996 With California finally part of the United States, two rail companies raced to connect the monied East and the promising West. Along the way, fortunes would be made, lives lost, and adversity overcome. This is the story of the largest, most expensive challenge of the 19th century.

Mark Seen

Las Vegas Sep 3, 1996 Rising from a stretch of desert with nothing but remoteness to recommend it, Las Vegas became a glittering wonderland for dreamers. We’ll take a look at the forces that made Las Vegas a place unlike any on earth.

Mark Seen

The Eiffel Tower Mar 20, 1995 To the people of France, and to citizens of the world, Gustav Eiffel’s 320-meter Tower is more than an unsurpassed technological and engineering wonder, conceived and built to astound the public at the 1889 Paris Exposition…it is a symbol of triumphant spirit, demonstrating how an innovative metal matrix can form a structure whose posture reinforces an aesthetic of glory.

Mark Seen

Domed Stadiums Sep 16, 1996 The domed structure is one of the earliest forms of shelter–from African mud huts to frozen igloos to holy shrines and cathedrals. As a design concept, the shape represents the community under the canopy of heaven; as a technological device, the dome is the most efficient way of controlling an internal environment. And today, as we see here, engineers have enlarged and transformed the ancient concept to build some of the world’s most spectacular structures–domed sports stadiums.

Mark Seen

Gothic Cathedrals Oct 21, 1996 Built of stone and glass, persistence and prayer, gothic cathedrals are an epiphany of imagination and an articulation of joy. Featured are such masterpieces as Chartres, Notre Dame and the National Cathedral in Washington D.C.