At the top of the world, there is a sea—the remains of one, at least. The summit rocks of Mount Everest, the highest ...

Standing at an awe-inspiring 8,848 meters (29,029 feet) above sea level, Mount Everest is recognized as the world's highest mountain. This measurement is based on the global mean sea level ...

Pen Y Fan is 886 metres above sea level. Slieve Donard is the tallest mountain in Northern Ireland and it's 850metres tall. The tallest mountains in England are in the Lake District and the ...