Barcelona is a vibrant city with a rich history and culture, and there are many things to do and see. Here are some of the best things to do in Barcelona according to the search results:

• Visit the Sagrada Família: This is Barcelonas most famous landmark and a must-see attraction. The Sagrada Família is a magnificent masterpiece designed by Antoni Gaudí that has been under construction for more than 130 years.

• Explore Gaudís other designs: Gaudís unique architecture can be seen throughout Barcelona, and some of his other famous works include Casa Batlló and Park Güell.

• Wander the Gothic Quarter: This is one of the oldest and most charming neighborhoods in Barcelona, with narrow streets, historic buildings, and plenty of shops and restaurants.

• Visit Barcelonas food markets: Barcelona has several food markets, including La Boqueria and Mercat de Santa Caterina, where you can find fresh produce, seafood, and other local specialties.

• Soak up the sun at Barcelonas city beaches: Barcelona has several beaches, including Barceloneta and Bogatell, where you can relax, swim, and enjoy the Mediterranean climate.

• Experience Barcelonas famous nightlife: Barcelona has a vibrant nightlife scene, with many bars, clubs, and restaurants open late into the night.

• Take a day trip: If you have time, consider taking a day trip from Barcelona to places like Montserrat, Girona, or Tarragona.

• Watch a football match: FC Barcelona is a prominent part of the citys culture, and watching a football match at Camp Nou or in a bar with locals can be a fun experience.

These are just a few of the many things to do in Barcelona. Whether youre interested in history, art, food, or nightlife, theres something for everyone in this vibrant city.