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TIL about the Richat Structure, "Eye of the World" in the Sahara desert

https://en.wikipedia.org/wiki/Richat_Structure
#til #todayilearned
https://www.reddit.com/r/todayilearned/comments/1g4icj5/til_about_the_richat_structure_eye_of_the_world/

#TIL #todayilearned
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