Awesome Machines and Incredible inventions featured in this video: The Monocycle, A Train Snow-blower, Helicopter Tree Trimmer, A Massive Excavator, The Hemi Air Raid Horn, Brick Paving Machine, 28 Cylinder Aircraft Engine and a Tunnel Boring Machine.

Innovations From Some of the World's Most Brilliant Minds.
They might not be elegant or flashy, but these monster machines are some of the biggest, baddest vehicles in existence.