Ancient Stone Structures of Saudi Arabia Revealed

Between Oct 27-29 an archaeological team took nearly 6,000 aerial photographs of ancient stone structures and other archaeological sites in Saudi Arabia. 

https://www.livescience.com/60918-aerial-images-reveal-saudi-arabia-stone-structures.html

https://www.livescience.com/60917-photos-mysterious-stone-structures-gates-saudi-arabia.html