(Der Spiegel) True masters of water management once lived in the desert of what is now Jordan. It took the Nabataeans only a few decades to carve the city of Petra out of sandstone cliffs. In addition to crafting now world-famous decorative tomb facades, they built a sophisticated system of water pipes and cisterns, which made it possible for the city to exist in the dry wilderness in the first place — more than 2,000 years ago.

  • Text smaller
  • Text bigger
Note: Read our discussion guidelines before commenting.