

Traveling to New York, Denver and Nice, France to visit Little Island, the Denver Museum of Art and La Tête Carrée; the secrets to how they were built are revealed.

Witness amazing buildings, bridges, lifts, and other structures that pushed structural concrete engineering to the edge.

Engineers create impossibly shaped buildings: Albany's Egg, a huge, sculpted theatre space, fit for a Rockefeller; a floating fortress in LA, protecting $2bn in art; and giant New York offices towering over America's busiest com.

Father-son aviators battle turbulence to refuel a remote mine, bush pilots fight an aerial jam to reach Alaska's biggest sled race, and the Coastguard turn a C-130 into a bomber to drop supplies on an isolated beach.

When a commercial airliner goes down in eastern Ukraine in 2014, examiners must conduct an investigation in the middle of a war zone.

A miraculous rescue is launched after a 747 plummets toward the Pacific.

The U.S. Aviation Weather Center in Kansas City, Miss.; the importance of accurate weather forecasting to the aviation industry.

The consequences are disastrous when ice forms on an airplane's wings; three planes are brought down by ice, and it's up to investigators to determine how modern aircraft could possibly end up with frozen wings.