Eye of Africa, Mauritania

The Richat Structure, also known as the Eye of the Sahara and Guelb er Richat, is a prominent circular feature in the Sahara desert near Ouadane, west–central Mauritania. This structure is a deeply eroded, slightly elliptical, 40 km in diameter dome. The sedimentary rock exposed in this dome ranges...

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Ship Rock, New Mexico

Shiprock (Navajo: Tsé Bitʼaʼí, "rock with wings" or "winged rock") is a monadnock rising nearly 1,583 feet (482.5 m) above the high-desert plain on the Navajo Nation in San Juan County, New Mexico, United States. It has a peak elevation of 7,177 feet (2,187.5 m) above sea level. It lies about...

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