• What is the world’s largest river basin?
  The Amazon river basin in South America covers about 7,045,000 sq km ...

• What is the world’s longest river?
  The Nile in north-eastern Africa is 6,617 km (4,112 miles) long. The ...

• What is the deepest cave?
  The Réseau Jean Bernard in France is the deepest cave system. It ...

• What is the world’s largest desert?
  The Sahara in North Africa covers an area of about 9,269,000 sq km ...

• What is the world’s largest high plateau?
  The wind-swept Tibetan Plateau in China covers about 1,850,000 sq km ...

• What is the world’s mightiest river?
  The Amazon River in South America contains far more water than any ...

• What is Meteor Crater?
  Meteor Crater in Arizona, America, is a circular depression. It ...

• Where is the world’s highest mountain range?
  The Himalayan range in Asia contains 96 of the world's 109 peaks that ...

• What Japanese wonder attracts pilgrims?
  Mount Fuji in Japan is a beautiful volcanic cone. Many people regard ...

• How can people protect natural wonders?
  People enjoy visiting natural wonders, but they can damage the land, ...