What the world would be like if land and sea were inverted

You've likely seen maps of the earth with land and sea inverted, where Asia becomes the world's greatest ocean and the Pacific a vast, sprawling continent. But high school geography teacher John M Adams took it a step further and explained what it would be like to live in this parallel world. The Marianas Mountains make the Himalayas look like a traipse up Scafell Pike...

Whereas Earths land averages 840 meters above sea level, New Earth averages a breathtaking 3,700 meters altitude. The highest point is Mt. Challenger in the Marianas Mountain Range (10,994 meters). Many Marianas peaks are unscalable due to the lack of oxygen ...

[via Simon Kuestenmacher]