Petra, the ancient city carved into the cliffs of Jordan, continues to reveal its secrets. New discoveries are regularly made in Petra, including the potential ruins of a hidden structure. Built by the Nabataeans in the 4th century BCE, Petra features temples, tombs, and a hydraulic system. The city's strategic location made it a thriving commercial hub and a critical respite for travelers. Visitors are advised to explore the site over several days to fully appreciate its depth and history.