1. Visit the Sagrada Familia: Barcelona's most iconic and awe-inspiring architectural marvel, the Sagrada Familia is a must-visit.
2. Explore the Gothic Quarter: Walk the winding, narrow streets of the Gothic Quarter, Barcelona's oldest district, and explore the city's Roman and medieval history.
3. Shop and Dine on La Rambla: Stroll down La Rambla and browse the shops, restaurants, and cafes that line the pedestrian street.
4. Take in Barcelona's Art: Visit some of the city's most famous art museums, such as the Picasso Museum and the National Art Museum of Catalonia.
5. Relax on the Beach: Barcelona has some of the best city beaches in Europe, so make sure to take a dip and relax in the Mediterranean sun.
6. Explore Park Güell: Take a stroll through Gaudi's magical Park Güell and discover some of Barcelona's most unique architecture.
7. Visit Camp Nou: Take a tour of Camp Nou, the home of Barcelona's famous football club, and explore the museum and stadium.
8. Indulge in Tapas: Barcelona is the home of tapas, so make sure to indulge in some of the city's delicious traditional dishes.
9. Visit La Boqueria: Explore the vibrant La Boqueria market, and taste some of the freshest and most delicious produce in the city.
10. Take a Day Trip: Barcelona is surrounded by some of the most beautiful places in Spain, so make sure to take a day trip and explore the stunning landscapes of Catalonia.