Europe is one of the world’s six continents. Europe is generally ‘divided’ from Asia to its east by the watershed divides of the Uraland Caucasus Mountains, the Ural River, the Caspian and Black Seas, and the waterways connecting the Black and Aegean Seas. Europe is bordered by the Arctic Ocean and other bodies of water to the north, the Atlantic Ocean to the west, the Mediterranean Sea to the south, and the Black Sea and connected waterways to the southeast.
Europe is the world’s second-smallest continent by surface area, covering about 10,180,000 square kilometres or 2% of the Earth’s surface and about 6.8% of its land area. Of Europe’s approximately 50 states, Russia is the largest by both area and population (although the country has territory in both Europe and Asia), while the Vatican City is the smallest. Europe is the third-most populous continent after Asia and Africa, with a population of 733 million or about 11% of the world’s population.