As is Barcelona and Athens. But it would ruin the neighborhood's character /s Sources: https://en.wikipedia.org/wiki/List_of_European_Union_cities_proper_by_p

As is Barcelona and Athens. But it would ruin the neighborhood's character /s Sources: https://en.wikipedia.org/wiki/List_of_European_Union_cities_proper_by_population_density https://en.wikipedia.org/wiki/List_of_European_Union_cities_... https://en.wikipedia.org/wiki/List_of_United_States_cities_by_population_density https://en.wikipedia.org/wiki/List_of_United_States_cities_b...