Weight watchers

AII the numbers surrounding the onshore heavy lifting sector are staggeringly large. As an example, the strongest crane in the world - the Taisun gantry crane, albeit confined to a yard in Shandong Province, China - can raise a breath-taking 20,000 tonnes, equivalent to 2,850 elephants, 167 blue whales, or two Eiffel Towers.

If its impressive 24,000 tonne capacity crane design ever escapes the drawing board, however, Mammoet will take the ultra-heavy lifting crown.