Sudan has more pyramids than any country in the world.

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

Hawaii is moving toward Japan at about 3 inches per year.

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

The Earth is slightly flattened at the poles.

The longest mountain range in the world is the Andes.

Mount Everest grows slightly each year due to tectonic activity.

The Arctic experiences months of continuous daylight in summer.

The Earth's continents were once joined in a supercontinent called Pangaea.