17 hours to climb 29 floors

The structure weighing as much as 150 elephants moved at snail’s pace throughout Wednesday, up two of the tallest towers in town. It was difficult to tell from the ground whether the 600-tonne metal skeleton of the hanging entertainment hub at Atmosphere was moving at all, but it did. Every half an hour or so the gigantic structure would cross a floor of the landmark address off Science City. The metal structure that will one day house a luxury walkway in the clouds took almost 17 hours to be hauled up 315ft, which translates to around 1.6mm a second. The slowest snail in animal planet moves a shade faster, at 2.8mm a second. Metro was under a yellow helmet at the construction site from dawn to see the engineering feat.