Guyaju cave dwellings are in the cliffs of Yanqing County, Beijing.
With 1000 years of history, the intriguing cave complex still baffles historians.
Records suggest it was built between the Tang and Liao Dynasties by the Xi tribe.
Caves found there contain a variety of shapes and styles of "rooms" that incorporate doors,
windows, kitchen ranges, and closets ¨C like any contemporary high-rise apartment.
It takes 2 hours' drive from Beijing.