Yayakis got involved in a multicultural campaign in Barcelona and produced these tube maps with real data of people that live in different neighborhoods in the city.
People born in Barcelona / Total people living near the subway stop
If you are looking for a multicultural environmental you should get off in Liceu, Drassanes, Jaume I, or Trinitat Vella. In Drassanes and Liceu just 31% of the population was born in the province of Barcelona.
If you are looking for people who where born in Barcelona stop at Tres Torres (70%).