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 ...

The Great Wall of China, a symbol of ancient civilization, stretches across the northern borders, standing as a testament to over two millennia of history. Despite its grandeur, what remains today ...

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.