Approaching through the long, narrow chasm, or Siq, you come face to face with the graceful columns of the magnificent Treasury, Petra’s most-photographed building. Like almost all structures here, it wasn’t built but rather carved out of the pink-hued rock, which means the interiors are usually modest in comparison with their grand facades. Further sights at ground level include an 8,000-seat amphitheater, numerous tombs and the triumphal arch of the Temenos Gateway.
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Climb to higher ground and you'll find an open-air site of ritualistic sacrifices, the huge Monastery and the Triclinium, or Feast Hall, which has the best of Petra's few surviving decorated interiors.
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