The wettest place on Earth is Mawsynram, India — receiving over 11,000 mm of rain annually.

Russia spans 11 time zones and is so wide that the sun is setting in the west as it rises in the east.

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

There have been five mass extinction events in Earth's history — and we may be in the sixth.

Urban populations now exceed rural populations worldwide.

Iceland sits directly on the Mid-Atlantic Ridge and is actually spreading by 2.5 cm per year as two tectonic plates diverge.

The first forests appeared during the Devonian period.

There is more water in Earth's mantle than in all the oceans on the surface.

The Colosseum in Rome demonstrates advanced ancient engineering.