Base in Eixample for walkable access to Gaudí masterpieces and Gothic Quarter. Spend days 1-3 on Sagrada Família, Park Güell, and Barri Gòtic for general sightseeing and culture, weaving in tapas crawls for food. Prioritize timed tickets to skip lines and hit local eateries one street off main drags. This sequencing beats crowds and fits your balanced exploration perfectly.