Rock saws. Excavators. Slab carriers. What do these vehicles have in common? They are machines made to do a specific job--and they're huge! Questions throughout the text engage the reader with what they are reading. Each mega machine featured in this book is explained in fun detail with an accompanying diagram and full-color photograph of the machine. From how many tons a ladle carrier can haul to how exactly a cold planer removes asphalt and concrete from a roadway, the main content includes everything readers want to know about the most mega machines!