Uzbekistan's Kyzyl Kum Desert is certainly not as well known as the other entries on this list. It is a vast land of red sands and few inhabitants. This area is home to some interesting animal species, with the scant winter rains supporting deer, boar and antelopes, in addition to desert reptiles and birds.
The natural history of the Kyzyl Kum actually goes back to prehistoric times, and a number of dinosaur bones have been found inside the desert. It is possible to take a multi-day 4x4 or camel tour of the desert. Few tourists venture here, but that might be a plus for adventure seekers who want to get off the beaten path.