Mt. Everest: the tallest mountain on Earth above sea level, and a tempting climb for those with such a massive ego that they feel the need to climb the tallest mountain in the world in order to satisfy it.

Of course, attempting to climb Everest is incredibly expensive, and incredibly risky. Hundreds of people have died attempting to climb it over the years, and this year has been particularly deadly, with around 11 people having died in their attempt to reach the world's tallest peak.