Mega Ice City
In north east China, a team of workers have just 15 days to hack 100,000 tonnes of ice out of a nearby river, and turn it into a breath-taking 750,000-square metre city of ice.
The team must battle brutal arctic temperatures, dizzying heights and snowstorms to construct 30 giant ice structures as part of the Harbin Ice Festival. Featuring a spectacular 27-metre statue of Buddha, a mammoth ice bridge with 3-metre high arches, and at the heart of the city, a record breaking 40-metre tall double tower - the tallest ice structure in the world. At night, using special LED lights, engineers illuminate each structure from within to create a spectacular light show.