Today you are free to partake in some of the optional activities on offer in Barcelona. In the morning perhaps head to the stalls of Santa Catarina Market, a huge trove of local produce beneath a colourful, undulating roof, and hang out with the locals as they select the best produce that they’ll transform in to big weekend family meals. The city is famous for its architecture, from its impressive gothic main cathedral to the houses, concert halls, palaces and basilicas designed in the unique Catalan Modernista style. The master of this movement was Antonio Gaudi, who's eccentric creations are dotted all over the city. A visit to Gaudi's masterpiece, the modern basilica of La Sagrada Familia, is a must, even if it's just to see the outside. Gaudi worked on this hugely ambitious project for decades until his death, and it remains in constant construction. Perhaps check out the Neo-Gothic mansion of Guell Palace, or the wave-inspired structure of Casa Batlo. For more insight into the artist himself, head to the Gaudi House Museum inside Parc Guell, home to more colourful sculptures, including a long mosaic-covered bench overlooking the city. For something a little different, perhaps have a poke around the Old Santa Creu Hospital. For your final night, perhaps finish the day with a sip of red wine from a porro – a traditional glass pitcher.