How do you spend a lovely day in Barcelona? First, visit the Banksy Museum in the Gothic Quarter. Take in the thought-provoking pieces that are located throughout the world but replicated on the walls of this museum/gallery. Stroll the streets and browse shop after charming shop. Then, when you’re ready for a break, have a coffee and some delicious churros with chocolate. This dress from King Louie Clothing is perfect for perusing art galleries with…