Archaeologists in Egypt have been left baffled after a large ... The "electrically resistive material in a sand dune can be a mixture of sand and gravel, including sparse spacing or air voids ...

The sand that makes up the dunes had traveled too, migrating west from Egypt and Sudan. We were guided by an old French map that depicted the dunes as right parentheses, all pointing into the wind.

This giant sand dune in southern Spain is about 98 feet high ... the site was even used in The Crown series to film Princess Diana's visit to Egypt in 1992.

Surreal desert destinations, such as the White Sands National Park and Pinnacles Desert, showcase some of nature’s stunning ...