dbergkamp10:
Mingsha Hill @ Dunhuang
dbergkamp10:
Yangguan 2 @ Dunhuang
dbergkamp10:
Yangguan @ Dunhuang
dbergkamp10:
Mogaoku @ Dunhuang
dbergkamp10:
Yellow River @ Lanzhou
dbergkamp10:
Yellow River 2 @ Lanzhou