The caves here are among the finest examples of Buddhist art in the world. There are 45,000 square feet of murals to savor, though the most rewarding visits take in around seven or eight of the best caves, where you will be guided by one of the site's qualified guides.
Photography is not allowed inside the caves, but some nice books can be bought from the museum on site. The best caves are probably those dating from the Tang period, when this region was at its zenith.
A couple of the caves house large statues of the Buddha — one, at over 34 m high, is one of the world's tallest.