The Richat Structure, also known as the Eye of the Sahara and Guelb er Richat, is a prominent circular feature in the Sahara desert of west–central Mauritania near Ouadane. This structure is a deeply eroded, slightly elliptical, 40 km in diameter, dome. The sedimentary rock exposed in this dome range in age from Late Proterozoic within the center of the dome to Ordovician sandstone around its edges.
A model presents a creation made with chocolate by designer Wang Jingzhi and Maitre Chocolatier Roberto Rinaldini during the international exhibition of chocolate “Salon du Chocolat” in Milan, Italy, February 12, 2016. (Photo by Stefano Rellandini/Reuters)
A woman wades through floodwaters next to rescue workers after remnants of Typhoon Doksuri brought rains and floods in Beijing, China on August 2, 2023. (Photo by Tingshu Wang/Reuters)
An art installation is on display at Gentle Monster's Multi-brand Space – Haus Nowhere Shanghai on March 20, 2024 in Shanghai, China. (Photo by Wang Gang/VCG via Getty Images)