Season 3

Some machines are made to be replicated on an assembly line, but the most impossible machines in the world are the rarest of beasts!

Powerful machines tackle extreme jobs in logging, steel mills and on highways, where one misstep means success or disaster.

The world’s largest car plant, a colossal cutting-edge helicopter and one of the biggest ferry fleets prove that size really matters.

Heavyweight haulers turned track stars, a deep-sea construction giant, and massive crop harvesters are the mega-muscled, battle-tested machines ready to power, feed and move the world!

Whether crushing bedrock, climbing boulders or scattering the rocks that support railway tracks, these monster machines, and the hard hat heroes at their helms, are the ultimate monsters of rock.

One of the world’s strongest heavy-lift cranes, a beastly tunnel borer and an iconic U.S. build define colossal construction.