The sight of these machines will give anyone who has played in a sandbox goose bumps. The Greatest Ever…Construction Machines shift rock, stone and sand by the ton, they move whole mountains and tower into the sky. In the course of history, brilliant engineers have developed extremely effective tools, expanding the scope for shaping our earth in ways previously undreamed of. With the help of these machines, mankind is able to achieve great feats without so much as getting its hands dirty. Our experts have decided on their favourites, but which construction machine would you choose to dig up your front garden?