Map of Europe.
Europe has an area of 4 million square miles and ranks sixth in size among the seven continents. Europe and Asia are sometimes called Eurasia because they share the same immense landmass. But most geographers consider them to be separate continents, with the Ural and Caucasus Mountains as the dividing line. The sunny, warm beaches of the Mediterranean Sea contrast with the Arctic cold of the northern reaches of Europe. The continent has many important rivers that flow to the ocean or sea and have long served as busy transportation highways. The fertile farmland of the Great European Plain of north-central Europe produces food for much of the continent. Europe, with a population of 727 million, is densely populated.