The Great Wall of China may look empty on Instagram, but it's often extremely crowded. On April 1st, it was packed because of a holiday. It looked terrible. Story and editing by Jeremy Dreyfuss ...

Each has its own rich history, with several known as "Wonders of the World." The Great Wall of China is part of that list. The extensive structure was built over millennia by various Chinese ...

Ordinarily I might have paused to catch my breath, but hiking up to the Great Wall of China is never an ordinary affair. Its silhouetted battlements running along the skyline spur me on.