"It makes the mind race that we have structures as big as five to six football fields, made of thousands of tonnes of stone, that not only cover such as massive geographic region but that also are 7,000 years old," said Dr Hugh Thomas, co-director of Aerial Archaeology in the Kingdom of Saudi Arabia Projects (AAKSAU). He has been working alongside McMahon for the past two years conducting aerial archaeology surveys and targeted excavations to understand the mustatil"s purpose.

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