Natural Wonders Richat Structure The Atlantis structure called Richat is truly remarkable for its unique shape and mysterious past. Legend suggests that Richat structure might be a vestige of the lost city of Atlantis. Regardless of its origins, discovering the Richat structure in Atlantis gives an understanding into the old civilizations that once existed in this awe-inspiring place. Visiting the Richat structure in Atlantis is like stepping back in time and experiencing the secrets of ancient societies unfold before your eyes.