Everest, the highest mountain on Earth, was not conquered until 1953. A look at the incredible forces that led to Everest's creation, and meeting some of the humans and animals who live in its shadow.
Ben Nevis is a mountain of two faces. Gentle, winding paths of the south contrast with the deadly cliff faces of the north, which draw in adventurers from around the world. Animals who live on Ben Nevis include the majestic golden eagle and deer.
Mont Blanc wasn't scaled until the late 18th century. Now it is the heart of European mountain sports with millions of visitors. The 7.5 mile tunnel through its heart was a miracle of 1960s engineering, but also suffered a catastrophic accident.
Majestic Kilimanjaro is the world's largest land-based volcano. Encompassing landscapes from savannah and rainforest to five-storey glaciers, the mountain has drawn countless climbers, including British Paralympian Aaron Phipps.