The Spaces is a digital publication that covers architecture, design and art. (CNN) China is raising the stakes in the race for the 'tallest' man-made structures: six of the 10 tallest buildings predicted to top out in 2017 are in this booming corner of the world. According to The Council on Tall Buildings and Urban Habitat, a building is structurally "topped-off" when it is under construction, and "the highest primary structural element is in place." Wuhan Greenland Center (above), will become China's tallest building when it tops out next yearPredicting top-outs is an imperfect science, made difficult by factors including weather and financing. Don't be surprised to see a few familiar faces among the jaw-dropping supertalls that are redefining our cities' skylines.

Source: CNN January 12, 2017 03:33 UTC