Begin with coffee and butter croissant at Federal Café, then explore MACBA and the Contemporary Art Museum. Lunch on cheap Pakistani or Chinese food around Carrer de l'Hospital. Afternoon walk through the medieval Gothic Quarter boundary, stop at La Virreina cultural center. Evening: pintxos at a standing bar on Carrer Ample, then late dinner at a hole-in-the-wall Pakistani joint, followed by craft beer at Bodega Montferry.

Wake early at Federal Café for excellent coffee and pastry among design students, then wander the Gothic lanes and peek into vintage shops. Lunch on jamón ibérico at El Xampanyet, spend afternoon at the Picasso Museum, then hit the vermouth bars along Passeig del Born around 6 pm. Dinner at a standing-room tapas counter, then bar hop until midnight.

Wake at Café Salambó for cortado and toast, wander narrow streets toward Plaça de la Virreina, lunch at a hole-in-wall tapas spot like Bar Choko. Afternoon exploring indie boutiques on Carrer de Verdi, golden-hour drinks at Plaça del Sol watching families and buskers. Dinner at a family-run place like La Vermuteria del Tano, then drinks and live music until late.

Start with coffee at Brunch & Cake on Carrer de Còrsega, then walk to Sagrada Família for two hours. Lunch at a vermut bar on Carrer d'Aribau around 1pm, then explore modernist architecture on Passeig de Sant Joan. Aperitivo at a rooftop bar near Plaça de Catalunya at 7pm, dinner at 10pm, then nightlife on Carrer de Còrsega or around Plaça Reial until 2am.

Morning at Mercat de Sarria, coffee at a local cafe, medieval street walk, lunch at La Pepita, afternoon FGC to Tibidabo or Pedralbes Monastery.

Start at Cal Pep for standing-room-only seafood breakfast at 8am, then wander beachside to Parc de la Ciutadella's free gardens. Lunch at a chiringuito with feet in sand, afternoon coffee at Flax & Kale, then hit Carrer de la Maquinista's vermouth bars at 7pm and dance until sunrise at Opium Mar or Mokai.