Beijing has spent hundreds of billions of dollars to build the world's largest high-speed rail system -- a feat accomplished in less than a decade.
The extensive network connects just about every major city in eastern China -- from Harbin in the north to Shenzhen, near the border with Hong Kong.
Trains cover the 820 miles between China's two largest cities -- Shanghai to Beijing -- in just five hours. Since the line opened in 2011, more than 220 million passengers have traveled the route.
NEXT: Going the distance