Petra’s Treasury, carved out of the pink rock, became the legendary hiding place of the Holy Grail. The effect was immediate, and tourists now flock to follow in Harrison Ford's footsteps.

Ad Deir, or the Monastery, is one of Petra's many facades carved out of sandstone in Wadi Musa, Jordan. As visitors enter Petra from the winding gorge known as the Siq, they first behold the ...

About 2,000 years ago, the powerful ancient kingdom of the Nabataeans hand-carved a city into the sandstone cliffs of Petra ... and start to study what was inside. The researchers used new ...