Rub’ al Khali by sza1985 Posted on June 6, 2015 by birdmanps Rub’ al Khali is the largest sand desert in the world. Rub’ al Khali literally means ‘Empty Quarter’. I took approximately 1200 km round trip with a friend to see the sand dunes. via 500px http://ift.tt/1JuePDD Share this:TwitterFacebookLike this:Like Loading... Related