Just came back from Petra. Went in to the Palace or Corinthian Tomb, can't remember which one and saw that the ceilings and walls was quite flat with diagonal uniform chisel marks quite like the ones seen in Longyou Grotto Caves in China. That tomb/room was the only place we saw that had those chisel marks.
In Petra:
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Mystery of the Longyou Grotto Caves
Longyou Grotto Caves chisel marks:
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In Petra:
Mystery of the Longyou Grotto Caves
Longyou Grotto Caves chisel marks:
