The Chinese New Year is the world's single biggest human migration of people: over 200 million travel to celebrate with family - many of them on the country's advanced bullet train network.
China is growing at a breakneck pace and racing to keep up with demand. As new cities are built and current ones expand, the country is pushing the limits of technology and innovation. On an aerial tour over megacities like Shanghai and Beijing, discover how the population works, travels, plays, and adapts to China's exploding economy and massive urban transformation.
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