Anyone else in his place would have given up, but not him. Just a month after narrowly surviving being hit by a car, high-altitude mountaineer and research-zoologist Boyan Petrov starts his recovery and long preparation to continue his dream: climbing all the fourteen 8,000-meter peaks. Without supplementary oxygen and 3 times cancer survivor, he has climbed all 10 of the 14 eight-thousanders. Now it's time for the world's giant -... see more