Without the sharp pyramid of the Matterhorn rising as a dramatic backdrop, Zermatt would be another pretty little Swiss village instead of a world-famous symbol of the Alps and of Switzerland itself. 

Along with making Zermatt the Swiss poster child, the mountain defines the town and gives it a year-round appeal that no other ski resort can match.

The 4,478-meter peak was first climbed in 1865 by a British team of five and two Swiss guides. Although a few thousand people master it each year, it should still only be attempted by well-experienced climbers.