The Great Barrier Reef is one of the most diverse and amazing natural wonders to see in the ocean, and there are many plant and animal species that call it home

Vast numbers of Earth's plants and animals live in the planet's oceans, but scientists estimate we know about far less than half of them. It may be impossible t

The Grand Canyon is one of the most majestic sites in the United States, and its views have been wowing visitors for centuries. This text contains beautiful pic

In this Where Is? title, kids can explore the Great Barrier Reef—big enough to be seen from space but made up of billions of tiny living organisms. The Great

The ancient Aztecs are one of the most fascinating civilizations our world has ever seen, and their capital city of Tenochtitlan is just as interesting. Facts a