Diamonds are minerals composed of carbon that come from deep volcanic eruptions in the Earth's mantle and were formed billions of years ago.

From white sand beaches to black sand beaches, and even multicolored sand beaches - Earth has it all! Where does the sand color come from?

The Naica Cave of Crystals, home to giant selenite crystals, is one of the most fascinating, yet potentially deadly, places on Earth.

Our natural world heritage is under threat from many factors, including climate change, invasive alien species, building of infrastructure.

Cultural heritage is a collection of sites, objects and traditions that bring together the history, art and values of different cultures.