
Machines: How They Work
The extraordinary inner workings of an escalator, a leaf blower and a tape measure.

The extraordinary inner workings of an escalator, a leaf blower and a tape measure.

The extraordinary inner workings of a carwash, a blender and a bicycle pump.

The extraordinary inner workings of a chainsaw, a jukebox and a fishing reel.

A super strong model truck, a carnival ride and a backyard apocalypse bunker.

The Internet's biggest stunts and builds; featuring skiing acrobatics and memory skills.

A countdown of internet clips; revolutionary reversing; fish out of water; a bizarre six-pack.

Engineering; body hacks; Gatling gun made from junk; a human bird; bridge made of paper.

Putting the human body to the test; skill, strength and intelligence.

A quest to find crazy critters and weird natural events; kangaroos in a bag.

A countdown of workplace clips; office pranks, lifesaving drones and construction site skills.

An airport made from water and ice; a fish factory churns out millions of pounds of seafood a day.

A barge carries an entire train; a flying ambulance saves lives at 14,000 feet.

Alaska's Coast Guard fights waters to maintain buoys; rewards below Alaska's surface.

Alaskan engineers build a massive dam to power an entire town; the world's largest helicopters.

A machine with 588 teeth keeps the airport running; tugboats break through ice in the port.

A ship built to endure tsunami size waves travels on a highway unlike any other in North America.

Archaeologists piece together the ruins to reveal the origins and brutal decline of a lost empire.

Experts gain rare access to investigate lost tombs and forgotten rituals.

Investigating secrets that could reveal the truth behind one of Rome's most enigmatic emperors.

Experts investigate the buried secrets of this lost city to uncover the first origins of royalty.