El Vaso del Oro tapas restaurant Barcelona. El Vaso del Oro is one of the best authentic tapas restaurants in Barcelona. Location is just at the beginning of the Barceloneta area in the port area of Ciutat Vella. The atmosphere of El Vaso del Oro is typical tapas bar - a long room, a long bar, where customers stand or sit and enjoy a noisy and crowded scene dominated by a big selection of tasty tapas and big glasses of ice cold beer. El Vaso de Oro also is a 'cervesaria' which means brewery - and serves their own beer on tap.