Europe is conventionally considered one of the seven continents.
Gelogically, Europe is a subcontinent or large peninsula, forming the westernmost part of Eurasia. Europe is the world's second-smallest continent in terms of area, and is only larger than Australia. In terms of population, it is the third-largest continent with a population of more than 730 Mio people or about 11% of the world's population.
Europe is bounded to the north by the Arctic Ocean, to the west by the Atlantic Ocean and to the south by the Mediterranean Sea and the Caucasus. Europe's boundary to the east is vague, but has traditionally been given as the Ural Mountains and Caspian Sea to the southeast.
In terms of shape, Europe is a collection of connected peninsulas. The two largest of these are "mainland" Europe and Scandinavia to the north, divided from each other by the Baltic Sea. Three smaller peninsulas (Iberia, Italy and the Balkans) emerge from the southern margin of the mainland into the Mediterranean Sea, which separates Europe from Africa. Iceland and the British Isles are special cases. The former is a land unto itself in the northern ocean which is counted as part of Europe, while the latter are upland areas that were once joined to the mainland until rising sea levels cut them off.
The highest point of the continent is - according to various definitions - either located in the northern Caucasus in Russia (Elbrus - 5.642m) or in the Alps on the border between France and Italy (Mont Blanc - 4.808m). The deepest point of Europe is located 28m below sea level on the northern coast of the Caspian Sea.