Find out all about diggers and cranes, from bulldozers and tunnelling machines to the biggest tower cranes. Zoom in, see them up close and discover what makes them work. Then try the quiz to see how much you've learned!
Clive Gifford is the author of more than 150 children's books including 'Eye Benders', winner of the Royal Society Young People's Book Prize, Royal Society-nominated 'Out of This World' and '30 Seconds Space'.