What are the tallest, wettest, driest, hottest, deepest places in the Natural World? The widest river? The tallest living thing?

The tallest mountain on Earth is as tall as 20 Empire State Buildings stacked on top of one another. Where is it?

How deep is the deepest ocean?

What is driest place on Earth - where almost no rain has been seen for the last 500 years? And where is the wettest place?

What is the coldest temperature ever recorded, so cold that you get frostbite in less than 1...