Let's get lifting! See the world's strongest cranes in action. Have you ever wondered what it's like to operate a crane that's over 20 storeys high, or control a machine that can carry objects that weigh thousands of tones! Crane, new in the Machines at Work series, brings to life the excitement of these massive machines. Discover how cranes do important jobs - and why their operators need a head for heights! Supports the National Curriculum.