Avid climbers aren’t just seeking dreamy views and exercise. On the most dangerous hikes, the adrenaline rush can also be fueled by prospective glory and the ambition of breaking records. At least, that’s the case for some of the climbers who take on the world’s most risky trails. What makes a mountain dangerous? Which summits are the hardest to get to? That’s what you' this gallery.
Click on for a journey through the world’s 15 most dangerous mountain climbs; no boots required.