For my money Ait ben Haddou should be up there with the Taj, Machu Pichu, and the Statue of Liberty as one of the worlds most icconic sites.
That said I'm also glad that it isn't as being built of mud it seems rather fragile, and I sure it would soon be badly damaged, if the hordes of mass tourisum flooded in from nieghbouring Europe.
Perfectly situated on a hill overlooking a fertile river valley, surrounded by desert, and with the snow capped Atlas mounrtains as a backdrop, the view from the top seems to encompase the whole world; making the ascent through the alleys of Ait-ben-Haddou, which is like rambling through the middle ages, one of life's great experinces.