Couple Die of Thirst in Desert They were trying to get across Saudi Arabia's 'Empty Quarter' By John Johnson, Newser Staff Posted Jun 22, 2013 11:30 AM CDT 82 comments Comments File photo from the Empty Quarter desert in Saudi Arabia. (Shutterstock) (Newser) – A Qatari couple trying to drive across the biggest desert in the world has been found dead, reports the BBC. The couple apparently had car trouble in the middle of what's aptly called the Empty Quarter, a desolate stretch of sand more than 600 miles wide where temperatures top 120 degrees and dunes rise to the height of city buildings. The woman was found in or near their SUV and the husband about 6 miles away in an apparently desperate attempt to get help, reports the Telegraph. Police say they had run out of water.