Europe is the second smallest continent, located between Asia and Africa. It has around 50 countries and a population of over 740 million people. Some of its most notable features include its mountainous regions like the Alps and Pyrenees, river systems like the Danube and Rhine, and iconic landmarks such as the Eiffel Tower, Colosseum, St. Peter's Basilica, and Arc de Triomphe. Christianity is the dominant religion and Western culture originated in Europe.