Earth's surface is divided into seven continents and five oceans, each home to unique landscapes, climates, and ecosystems shaped over millions of years.
Asia is the largest continent by both area and population, home to over half of the world's people. Africa is the second largest and contains the most countries of any continent.
The Pacific Ocean is the largest and deepest ocean, covering more area than all the continents combined. The Atlantic, Indian, Southern, and Arctic Oceans each have distinct currents and ecosystems.
The Himalayas contain the world's highest peaks, including Mount Everest at 8,849 meters. The longest rivers, the Nile and the Amazon, support massive ecosystems.
The Sahara is the largest hot desert, while Antarctica is technically the largest desert overall due to its low precipitation. The Amazon Rainforest produces a significant portion of the world's oxygen.