The ideal number of days to spend in Barcelona would be around five to seven days. While the ideal duration of your visit depends on various factors, including your interest and travel style, you can visit significant landmarks like La Sagrada Familia, Park Güell, and the Gothic Quarter during the five days stay. You can also book an organized guided tour to maximize your time in Barcelona. This will allow you to visit the iconic sights and gain exciting knowledge about the city in the most organized way. Visit museums, discover beautiful artwork, and indulge in the culinary paradise with traditional Catalan cuisine during your stay. Save some time for relaxation on the beach while enjoying the Mediterranean Sea in front of you.