Join the friendly Stickmen on a fascinating tour of monster vehicles, transporters and construction tools. You’ll discover some of the largest machines in existence as you look inside the workings of a… • Bucket-wheel excavator • Semi-submersible rig • NASA crawler-transporter, the world’s largest tracked vehicle • Rip-roaring roller-coaster and much more. Cutaway illustrations and diagrams offer a look inside these wondrous mechanisms, while the Stickmen share facts, explain functions and test the limits of gravity – a roller-coaster ride in more ways than one!