Behind the skiers launching themselves off the 60-meter-high (196-foot) ramp are furnaces, tall chimney stacks and cooling towers on the site of a former steel mill that for decades contributed to the Chinese capital's notoriously polluted skies.
The mill, founded in 1919, ceased operations more than 15 years ago, as part of efforts to clear the air in the capital ahead of the 2008 Summer Olympics. That left a large stretch of prime city center land, ripe for rehabilitation and regeneration, says engineering and design company ARUP, which transformed the site into a bustling hub for tourism and art exhibitions, in 2013 it even played host to an electronic music festival.