Barcelona Zoo

A good choice for a short visit of the city. The price for the 2-day variant is roughly the same as a metro ticket from/to the airport (separate ticket) and a 10-rides ticket for metro. Discounts for museums are a nice extra value, I would say. I don't know if the lady giving me the card (in the tourist info at the airport) made a mistake, but I only got a blue "transport card" which worked on public transport (incl. the airport metro) and then in the museums and other places they asked me to show them "the red card" (Express card) which I didn't get. In most places showing them the map which comes together with the Express card was enough to get the discount, but they said I was supposed to have "the red card". So make sure that you get all you are supposed to get when picking up the card(s)!