Japanese climber Yuichiro Miura, 80, shows a victory sign upon his arrival at the airport after climbing Mount Everest, in Kathmandu May 26, 2013. Miura, who has had four heart surgeries, reached the top of Mount Everest on Thursday becoming the oldest person to conquer the world's highest mountain. Miura, who first climbed Everest in 2003 and repeated the feat five years later, takes the oldest climber record from Nepal's Min Bahadur Sherchan, who reached the summit at the age of 76 in 2008.