Europe is a small continent covering only 6.8% of the land area. Even though small in area, the region is thickly populated. The largest country in Europe is Russia and Vatican City is the smallest one. Europe is a world power which always played a major role in the global affairs. Most of the western culture and civilization has taken its origin in ancient Greece which is situated in Europe. The Roman Empire is another country which had made considerable contributions to the world in many fields like language, government, law, architecture etc. The European economy is the strongest in the world. The currency of the European Union is Euro.