Toppling giants of concrete and steel is dangerous and deadly. In demolition, one mistake can cost you your life. Witness a casino imploding as well as the dismantling of chemical weapons and tripping a silo.

On this episode: the world's fastest production motorcycle - Lightning LS-218; a "train" faster than the speed of sound - Hyperloop; the world's first nuclear fusion power plant - ITER.

In the past 50 years, the world's energy use has doubled. In the next 50 years, it will double again. Can we keep up with demand - or will we plunge into darkness?

On this episode: building a nuclear-powered icebreaker in Russia; laying the world's first trans-arctic cable in Alaska; constructing a modern airport on Baffin Island; building a permanent highway in middle of arctic winter.

The past does not give up its secrets easily. Brand-new machines are helping explorers reveal mysteries once thought lost forever. Underwater archaeologists are searching for a World War II Nazi sub that disappeared in U.S waters.

As humans push even further into the world's most extreme environments, the question is: how far can we go? A new breed of tools allows man to face deadly forces once thought impossible.

Around the world, a new class of superstorms is overwhelming our coasts. If nothing is done, great cities like New York, Venice, and Tokyo will simply disappear. Engineers are fighting back, raising some of the biggest sea defenses in the world.

A modern-day aircraft carrier is like a floating city: with 5,000 crewmembers, 80 aircraft, and a four-and-a-half acre big flight deck. It's nearly as long as the Empire State Building is tall, and has its very own 20-story skyscraper balanced on top.