The structures seem to come in all sizes and shapes, and archaeologists aren't sure what many of then were used for or when they were created.
Spanning about 3.6 million square miles (9.4 million square kilometers) the Sahara —Arabic for "The Great Desert" — is the largest hot desert on Earth, third in size to the cold deserts in Antarctica and the Arctic. The Sahara stretches across most of North Africa, and plays host to winds that can whip up punishing sand storms. Little grows there, but this harsh environment is home to scorpions, snakes, and more than 40 species of rodents, as well as mammals like hyenas, jackals, antelopes and foxes.
The Sahara is the world's largest hot desert, but parts of it could be made green if massive solar and wind farms set up shop there, a new study finds.
Researchers in Egypt just uncovered a newly identified long-necked dinosaur known as Mansourasaurus shahinae. This is only the sixth dinosaur to be discovered in Egypt.
Stunning views show the snow-covered dunes on the edge of the Sahara Desert — an area known to be one of the hottest places on Earth.
The Saharan silver ant can keep cool in the blistering heat of the desert thanks to tiny, reflective silver hairs that cover its body and reflect the light.
Deep in the Sahara Desert, the Al Jawf oasis in southeastern Libya is pictured in this space wallpaper from Japan’s ALOS satellite.
Three major rivers snaked through the Sahara about 100,000 years ago, creating green belts that could have allowed humans to migrate from Central Africa out of the continent, new research suggests.
Archaeologists have unearthed 20 Stone-Age skeletons in and around a rock shelter in Libya's Sahara desert
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