Hole In The World

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The biggest hole on the planet

A Geographer's Notebook: the world's biggest holes

WHAT'S AT THE BOTTOM OF THE DEEPEST HOLE ON EARTH?

10 Massive Holes In The Earth's Crust That Will Prove Just How Small You Are

File:Flickr - ronsaunders47 - THERE'S A HOLE IN THE WORLD TONIGHT..jpg - Wikimedia Commons

What is the Deepest Hole Ever Dug?, by Momina Naseem

Top Secret Swimming Holes Around the World, Top Secret Swimming Holes

Top 10 Deepest Holes In The Earth

First pictures from inside the 'crater at the end of the world