Mount Everest is the tallest mountain on Earth. It reaches 29,035 feet above sea level. It*was formed the same way as the rest of the Himalayas. The climate in Mt. Everest is extreme; so extreme that your body starts to shut down if you start to reach the top. There are many people who have attempted to climb to the peak of Everest, and some who have made it all the way. Everest, like the rest of the Himalayas, ascended from the floor of the ancient Tethys Sea. The whole mountain range originated when the Eurasian continental plate clashed with the Indian sub continental plate around 30 to 50 million years ago.