The most famous square in Barcelona is Plaça Reial, a delightful oasis within a stone’s throw from the Rambla and an inevitable point during our bike tours. The square, which dates from 1848 and is best known for its slim, tall palm trees and spacious arcade gallery along the four sides, has been renewed with the advent of the nightclub Ocana. Ocaña – a cafe, restaurant, cocktail bar and nightclub in one at number 15 – is a tribute to the artist José Pérez Ocaña.

http://loveisspeed.blogspot.hu/2012/11/the-most-famous-square-in-barcelona-is.html