Mc Donald's which is located in a shopping center near the Rambla de Mar. It is a classic Mc, very similar to the Italian ones, with some variations on the sandwiches. We stopped at Mc in Barcelona hoping to find numerous gluten-free options, as we had read online. In this MC, however, there were not so many gluten-free sandwiches but only one or two. Furthermore, I don't know how safe it can be given that gluten-free sandwiches are normal sandwiches that can be customized by adding gluten-free bread and removing the normal one. In Italy, however, the gluten-free sandwich is packaged and there is, in my opinion, greater attention to contamination.