Some of the world's most dangerous mountains show up in today's Geo Quiz. These peaks we'd like you to name are seriously steep. They belong to the ï¿½eight thousanderï¿½ club, meaning they're up above the 8,000 meter, or 26,000 foot mark. So if you're an accomplished mountain climber, you probably know the name of this 34-mile stretch, or massif in the Himalayas.
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