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Flickr/Katexic Publication, Licensed under Creative Commons

According to Rock and Ice Magazine, this entirely vertical 1,750-foot tall climb “requires thin, technical face-climbing above hundreds of feet of exposure.” In other words, it’s extremely arduous. Yet, in an astonishing feat, last year Alex Honnold free-soloed El Sendero Luminoso’s “big-wall” route in just three hours, which according to Outside Online typically takes climbers at least two days to conquer.