Two hidden mountains, more than 100 times larger than Mount Everest have been discovered deep underground. The two ‘islands of rock’ each measure more than 620 miles / 998km tall, dwarfing anything ...

Everest, conventional acclimatizing can take up to two months while climbing up and down the mountain ... climbed Everest I sought a journey – a challenge to push myself to the most extreme ...

Mountain journalist Yukio Kondo, who is a friend of the two climbers, said, “Hiraide considered this climb his biggest challenge.” Kondo added that K2’s route is steep and avalanche prone ...