Which the city is with the populational biggest density?
Premià de Mar
Santa Coloma de Gramenet
Badalona
How many Bars are there in Barcelona?
>1000
<1000
=1250
What is the city receives more tourists?
Barcelona
Donosti
Marsella
That city has more citizens?
Venezia
Barcelona
Paris
Which has the index of births of these cities more high?
London
Lisboa
Barcelona