10 simple facts about the world:

1. Largest Ocean: The Pacific Ocean is the largest ocean on Earth.

2. Highest Mountain: Mount Everest is the highest mountain in the world.

3. Longest River: The Nile River in Africa is the longest river.

4. Most Populated Country: China has the most people in the world.

5. Smallest Country: Vatican City is the smallest country by area.

6. Biggest Desert: The Sahara Desert in Africa is the largest hot desert.

7. Tallest Building: The Burj Khalifa in Dubai is the tallest building.

8. Coldest Place: Antarctica is the coldest place on Earth.

9. Largest Rainforest: The Amazon Rainforest is the largest rainforest.

10. Oldest Civilization: The Mesopotamian civilization is one of the oldest known civilizations.