Course building for X Games Asia

This video takes you behind the scenes of the course build for X Games Asia 2012, which begins this Saturday, April 28, and goes through Tuesday. The four-day event is taking place in Shanghai, China's KIC Jiang Wan Sports Center. More than 150 athletes from more than 30 countries are on hand to compete.

"It's exciting to see it all come together," says Nathan Flores, who works for California RampWorks, one of the course builders. "I'm excited to see the athletes come out and see what they can do with the course."