Rub' al Khali or The Empty Quarter
Rub' al Khali or The Empty Quarter is the largest sand desert in the world, covering 650,000 square kilometers in Saudi Arabia, Oman, Yemen, and the UAE. In the center of the region there are a number of raised, hardened formations that were once the sites of shallow lakes thousands of years ago. This Overview here is captured in Saudi Arabia near the border with Oman. A collection of trailers and roads leading to the site are also visible at center.