Secrets of Petra

Petra in Jordan had a more efficient and advanced water system than ancient Rome, with a sophisticated water management system that allowed its 40,000 inhabitants to survive in the harsh desert environment. Scientists have discovered a hidden monument in the center of Petra using high-resolution satellite images, drone photos, and ground surveys, and they estimate there are still many undiscovered tombs and ruins buried beneath the ground. Despite extensive archaeological excavations and research, only about 15% of the ancient city has been fully explored and documented.