Mostly the densely populated areas in the west along the Rhine, though. There aren’t many dots in the southeast (except around Munich), in the middle (where I’m from) and in the east (except Berlin). If you zoom in (http://www.zeemaps.com/map?group=180379) you see that the dots in Europe are (unsurprisingly) much denser in the UK, but Germany might take the second place in Europe, even taking population in account. (The Netherlands and Belgium also look busy, maybe they are taking the second pace in Europe after the UK.)