obelisk tomb and bab as-siq triclinium ruins ancient nabataean city petra, jordan near entrance to canyon siq. explore and

adventure ancient archaeology architecture attraction bab bedouin building carved cave city civilization column concept cut discovery doric east eco explore exterior facade famous formation funerary heritage hiking jordan landmark landscape middle monument mountain musa nabataean nature niche obelisk outdoor petra place pyramidal rock rose ruin sandstone siq site symbol tomb tourism touristic travel triclinium unesco vacation view wadi world