China

For the first time on a mass scale, a car built in China will be on sale in the U.S., joining countless other Chinese-made products. It comes as Chinese firms invest billions in the auto industry.

A third of the 12,000-mile-long Great Wall of China lies in ruins. Its modern-day defenders confront what may be the world's greatest challenge in cultural preservation.

Take the train to the Queens neighborhood of Flushing, and you'll find newcomers who are reshaping the largest Chinese community of any city outside of Asia.

More than 23,000 have come so far, with California a top destination — especially the Los Angeles suburbs in the San Gabriel Valley. Many teens live with host families and attend private schools.

China's claims of territory in the South China Sea are alarming its neighbors. The Filipino mayor of the disputed Spratly Islands is on the front line of the dispute.