Exploring the mystery of the cliff-face caves

Mystery surrounds more than 100 caves on the sheer cliff face of a peaceful gorge in Yanqing district.

There is no written record of the origin or history of the Guyaju cave complex in Zhangshanying town, 92 km north of Beijing. But they comprise the largest network of known cliff residences in the country.

The caves are a honeycomb of rooms of different shapes and sizes outfitted with doors, windows, kitchens and closets.