A small, weathered nine-tiered pagoda in a quiet park on the western edge of Dunhuang, said to date in its current form from the Qing dynasty though resting on much older foundations. It is no architectural marvel and you can take it in within fifteen minutes, but the legend it commemorates is exactly the kind of thing that makes Dunhuang what it is: a town where Indian Buddhism, Chinese pilgrimage, and the practical hardships of desert travel all overlap.
Worth a stop if you're passing — the surrounding park is shaded with poplars and quiet, a contrast to the crowds at the more famous sites. Free admission.