article_snippet: The Rub' al Khali, also known as the 'Empty Quarter', is the second largest sand desert in the world.
article_snippet: the second largest sand desert in the world has distinctive dune formations and covers 250,000 square miles (650,000 square kilometres) including regions of Saudi Arabia, Oman, the United Arab Emirates, and Yemen .
article_snippet: The crew also captured distinctive dune formations of the Rub' al Khali, also known as the 'Empty Quarter.
article_snippet: It is the second largest sand desert in the world and covers 250,000 square miles (650,000 square kilometres) including regions of Saudi Arabia, Oman, the United Arab Emirates, and Yemen.