3Solvay Hut, Switzerland
Perched on the slopes of the Matterhorn, one of the most iconic peaks in the Swiss Alps, the Solvay Hut is one of the highest-altitude mountain refuges in the world. At an elevation of 4,003 meters (13,133 feet), this small wooden cabin is accessible only to experienced climbers. It was built in 1915 as an emergency shelter for mountaineers tackling the treacherous ascent of the Matterhorn.
