Atacama desert, a 15 million years old desert, located in south America stretches over 1000 kilometers. Located between the Andes and the Pacific Ocean, rises the most arid desert in the world. The Atacama desert is so dry that mountains of height 6,885 m have no glaciers, making them unique in the world. Studies have shown that the Atacama desert received no appreciable rainfall between 1570 and 1971, and some ancient riverbeds appear to have been dry for 12,000 years. The place is pretty cold despite being the driest desert and the temperature ranges between 0°C to 25°C.