The structures are believed to be among the earliest stone monuments constructed by humans in the world.
Based on findings published by Cambridge University Press on April 30, experts revealed that the neolithic rectilinear structures could date back more than 7,000 years.
A team of archaeologists from the University of Western Australia led by Dr. Hugh Thomas has conducted aerial archaeology surveys and targeted excavations across the northwestern region of Saudi Arabia, predominantly focusing on the AlUla and Khaybar provinces.
Research was completed as part of a program by the Royal Commission of AlUla’s (RCU) Aerial Archeology in the Kingdom of Saudi Arabia AlUla project (AAKSAU).