Super Structures of the World

At 14,000 feet, in the remote jungles of New Guinea, is the largest gold and copper deposit in the world.

The Hibernia platform stands 224 meters high, which is half the height of New York's Empire State Building and 33 meters taller than the Calgary Tower.

The International Space Station is one of the largest projects ever conceived and will take 45 space missions to provide the materials necessary to build the station.

The Kansai International Airport is just that - an island built to provide the space for an airport, and the only man-made structure other than the Great Wall of China visible from space.

The London Underground, a system of rail lines, is still growing through the present day with the latest line expected to carry an incredible 30,000 people per hour in each direction!

NORAD: Cheyenne Mountain is an incredible 4.5 acre compound center that monitors the skies for unidentified aircraft, missile launches, space objects and even falling space debris.

Deep in the jungles of Central America, man has battled nature to build an engineering marvel. Its price - thousands of lives.

Malaysia's Petronas Twin Towers and Chicago's Sears Tower are the focus in this fascinating history of these marvels of engineering.

Join the 1,300 workers in their 6-year effort to complete an almost unimaginable technological feat - the 3.5-mile Euro tunnel.

Called "the most complex military machine of the 20th Century," the $2.3 billion Seawolf submarine is a prototype for the U.S. Navy's undersea future.