Here are the seven continents by size, in descending order.
7. Oceania/Australia
Located in the Pacific Ocean, Oceania — made up of 16 countries, including Australia, Tonga, Fiji, New Zealand and other island countries — is the smallest continent. It is also one of the least populated continents.
At 7,310 ft (2,228 m) above sea level, Oceania's highest elevation is Mount Kosciuszko in Australia.
6. Europe
At nearly 10,000,000 sq km (3,861,021 sq mi), Europe is the second smallest continent. Europe has 49 countries, including Portugal, Slovakia and the United Kingdom.
Its most populous cities are Istanbul, Turkey; Moscow, Russia; and London, United Kingdom. Russia, a part of Eastern Europe, is also partially in Asia.
5. Antarctica
Antarctica is about 13,209,000 sq km (5,100,021 sq miles) and the least-populated continent. It has no countries, but it is home to some of the coldest places on Earth.
4. South America
The fourth-largest continent is approximately 17,8400,000 sq km (6,890,000 sq mi). Hundreds of millions live in South America, with São Paulo, Bogotá and Lima among the most populous cities. The continent has 12 countries.
3. North America
South America's neighbor, North America is the third largest continent. It is 24,709,000 sq km (9,450,000 sq mi) and stretches from the Aleutian Islands to Panama. There are 23 countries in North America.
2. Africa
Africa is 30,365,000 sq km (11,724,000 sq mi). With 54 nations making up the land mass, it has more countries than any other continent. Africa is the only continent in the four hemispheres.
1. Asia
Asia spans about 44,614,000 sq km (17,226,000 sq mi). It is the biggest and most populous continent, with 59 percent of the world's population.
India, located in Southern Asia, boasts the biggest population on the planet. The continent also has three other nations on the list of most populated countries in the world, including Indonesia in Southeast Asia. The continent shares borders with both Europe and Africa.