How I climbed a 3,000-foot vertical cliff -- without ropes ｜ Alex Honnold ｜ TED
11:49 · Random Knowledge · 2018-10-28
Imagine being by yourself in the dead center of a 3,000-foot vertical cliff -- without a rope to catch you if you fall. For professional rock climber Alex Honnold, this dizzying scene marked the culmination of a decade-long dream. In a hair-raisin...