Al-Khazneh sits inside a natural rock alcove that protected it from weather for millennia — which is part of why it looks this sharp. The facade blends Nabataean, Hellenistic, and Egyptian motifs, reflecting a civilization that sat at the intersection of every major ancient trade route.
© Al_Khazneh_Petra.jpg: Graham Racher from London, UK
derivative work: MrPanyGoff, CC BY-SA 2.0, via Wikimedia Commons