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🌍 The “Eye of the Sahara” (Richat Structure) The Richat Structure is one of the most visually striking geological features on Earth—a massive circular formation in the Sahara Desert of Mauritania that looks like a giant bullseye or “eye” when seen from space. 🧭 Quick facts Size: ~40–50 km (25–30 miles) across Location: Adrar Plateau, northwest Mauritania Age: ~100+ million years old Nickname: “Eye of Africa” or “Eye of the Sahara” Visible from space: Yes—astronauts use it a