When inverting the Earth, lakes become islands, while rivers become long, narrow strips of land. The mountains on the real Earth would be underwater trenches on Inverted Earth and vice versa. One of the prominent geological features on Inverted Earth would be the Marianas mountain range, which would have the highest peak (Challenger Peak or Mount Challenger) on Earth, even higher than Mount Everest. Likewise, the deepest point on Inverted Earth would be Everest Deep in the Himalayas Trench.