The Treasury at Petra, carved forty metres high into the rose-pink cliff at the end of the Siq around the 1st century AD: a Corinthian portico, a broken pediment and the little round tholos with its urn.
A 3D model of Al-Khazneh, Petra, built from photographs and drawings with my3dhouse. It is an interpretation of the building, not a survey of it.