I visit Barcelona at least once a year since 2011 so I know a little bit about the city.
Tapas in Born
Check out the street art
An interesting piece is La Carboneria this is a former okupa house and in the end Barcelona declared it patrimony building and the facade can't be changed, which is a great thing as it looks so nice
Did you notice the little detail on the side? I must say I find it very nice. The building is the oldest in the neighborhood built in 1864. Hope you will take your time to pass by and lets see what will be your favorite detail of the whole wall.