There’s been a clear division between western and eastern Europe since the days of Charlemagne. Today people think of the old Iron Curtain as the boundary between east and west which is natural, if a little unfair. The UN has clear statistical tools that group specific countries together and I use these to define Western Europe.
Articles about Western Europe, by country
From the Atlantic coast to central Teutonic Europe, click on one of the countries to read more stories about it.