11. K2 – Pakistan/China
K2 is infamous among mountaineers as the world’s most dangerous and difficult mountain to climb. Towering at 8,611 meters, its sheer slopes, technical climbing routes, and unpredictable weather have earned it the nickname “Savage Mountain.” Survival on K2 is a constant battle against nature. Severe storms can appear without warning, and the risk of avalanches is ever-present. Unlike Everest, there are fewer support teams and rescue possibilities, making every step a calculated risk. Only the most skilled and prepared climbers dare to attempt its summit.