The first two photos given are from el born and poblenou, which is out of the famous neighborhood l'exiample. Only l'exaimple is famous with their blocks. El born is a part of the historical center of Barcelona but now pedestrian area while poblenou was the industrial area before 1992 olympic games.

If you are looking for an example in Barcelona, it should only be l'eixample, which is one of architectural and engineering successes of 20th century.

And many times a very big fact is overseen: Barcelona is a village comparing to other big cities of the world. It is famous, popular, a great touristic destination in the summer but in the winter it is a village. A small city where people has normal, calm life. You can't compare it to any metropolitan city.