Altogether, there are 14 highest mountains that are more than 8,000 metres high above sea level - collectively, they are referred to as the "eight-thousanders". All of the eight-thousanders are located in Asia's Himalayas and the Karakoram mountain ranges.

Mount Everest ( or otherwise known as Chomolungma or "Goddess Mother of Mountains" to Tibetian natives ) remains the highest of the highest mountains at 8,848m. The first person to climb all 14 eight-thousanders was the Italian Reinhold Messner, who completed this feat on 16 October 1986.