Europe of population are Saint Petersburg, Madrid, Berlin and Rome, each having over 3 million residents. When considering the commuter belts or metropolitan areas, within the EU (for which comparable data is available) London covers the largest population, followed in order by Paris, Madrid, Barcelona, Berlin, the Ruhr area, Rome, Milan, Athens and Warsaw. "Europe" as a cultural concept is substantially derived from the shared heritage of the Roman Empire and its culture. The boundaries of Europe were historically understood as those of Christendom (or more specifically Latin Christendom), as established or defended throughout the medieval and early modern history of
Transport in Europe one of the world's busiest seaways carrying over 400 ships per day between Europe's North Sea and Baltic Sea ports and the rest of the world. As well as its role in freight movement, sea transport is an important part of Europe's energy supply. Europe is one of the world's major oil tanker discharge destinations. Energy is also supplied to Europe by sea in the form of LNG. The South Hook LNG terminal at Milford Haven, Wales is Europe's largest LNG terminal. Transport in Europe Transport in Europe provides for the movement needs of over 700 million people and associated