It's an extraordinary place to live. Welcome to Planet Earth.
To venture here is to undertake a journey like no other.
October brings near-perfect post-monsoon weather for trekking in Nepal.
How big is the world's biggest iceberg? How deep can you dive without oxygen?
The movement of the tides is caused by rotation of the Moon and the Earth.
The seven continents of the world are made up of four continuous landmasses.
Get on the river that runs through the Grand Canyon for the best experience.
Located in the Sunda Strait, Krakatoa is arguably the most famous volcano of all time.
The word volcano comes from the Italian island of vulcano, meaning "burning mountain".
Learn more about the deadly power of earthquakes.
Reaching towards the sky, mountains are the result of tectonic shifting and erosion.