At 7,570 metres, Gangkhar Puensum is Earth’s highest unclimbed peak
© Alamy
■ Almost half the land on Earth is still wilderness, home to just two per cent of the human population, but we’ve found a way to scale, cross and map most of it. A few areas remain relatively unexplored, like northern Patagonia and the Star Mountains of Papua New Guinea. Gangkhar Puensum in Bhutan is the world’s tallest unclimbed mountain, and it’s likely to remain that way since the government has banned any attempt to reach the top. If you want completely uncharted territory, you’ll need to head underwater. It’s estimated that over 80 per cent of the ocean remains unexplored. VW