The tallest waterfall, Angel Falls in Venezuela, has a continuous drop of 807 meters.

New Zealand was one of the last places on Earth to be settled by humans, around 1250–1300 CE.

The Earth is about 4.5 billion years old.

The Sahara Desert has both sand dunes and rocky plateaus.

The Earth's poles experience extreme seasonal variations in sunlight.

Antarctica is technically a desert — it receives less precipitation than the Sahara in many areas.

The Great Rift Valley in Africa may eventually split the continent in two, forming a new ocean in millions of years.

The Amazon rainforest spans nine countries.

The Earth's crust is divided into tectonic plates.