Europe is the sixth largest continent by area, covering 10,180,000 km², and has a population of 742 million people. It consists of 50 states, with Christianity being the largest religion, and is characterized by a diverse physical geography and climate influenced by its peninsular shape and proximity to various seas. Europe's economy is highly industrialized, particularly in automotive, aerospace, and chemical industries, while it has a rich tapestry of languages and cultures, predominantly from three main Indo-European language groups.