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Satellites and drones helped reveal huge ceremonial platform near the ancient city’s center.
An enormous monument has been hiding in plain sight at the World Heritage site of Petra, according to a study recently published in the Bulletin of the American Schools of Oriental Research.
Archaeologists Sarah Parcak, a National Geographic fellow, and Christopher Tuttle, executive director of the Council of American Overseas Research Centers, used high-resolution satellite imagery followed by aerial drone photography and ground surveys to locate and document the structure.
They report that the monument is roughly as long as an Olympic-size swimming pool and twice as wide.