The old meets the new in this sunny Catalan metropolis, where narrow alleyways contrast with grand boulevards, trendy cuisine meets homemade tapas, and everywhere you’re greeted by the warm, welcoming smiles of the fashionable locals. Don’t miss UNESCO sites like the mind-boggling architecture of Antoni Gaudí or La Sagrada Familia Cathedral, with its eight decorative spires soaring hundreds of feet into the sky.