Petra - The Nabataean City of the Dead, Jordan (135/418)

Inhabited since prehistoric times, this Nabataean caravan city was an important crossroads between Arabia, Egypt and Syria-Phoenicia. Pétra, half-built, half-carved in the rock within a ring of mountains and riddled with passages and gorges, is one of the most famous archaeological sites in the world, where ancient Eastern traditions blend with Hellenistic architecture.