石刻，佩特拉古城，约旦（摄影：Jodi Cobb）

掩藏在绵延峡谷深处的佩特拉古城，是公元前312年左右拿巴太人在砂岩峭壁上的杰作。公元106年，罗马人还对这个商贾要冲进行了修缮；随后因沿红海和尼罗河商路的兴盛，古城逐渐衰落——如今这里是世界文化遗产保护地。

Hidden at the end of a long ravine, the buildings of Petra, Jordan, were carved into sandstone cliffs by the Nabataeans around 312 B.C. After annexation by the Romans in A.D. 106, the city—once a hub of commerce—became less important as trade routes developed along the Red Sea and Nile River. Petra is now protected as a World Heritage site.

 (Photo shot on assignment for, but not published in, "Jordan: Kingdom in the Middle,” February 1984, National Geographic magazine)