In the morning, explore the Gothic Quarter, the historic center of Barcelona. Visit the Barcelona Cathedral, the Picasso Museum, and the Plaça del Rei. In the afternoon, take a stroll down Las Ramblas, a famous pedestrian street filled with street performers and vendors selling souvenirs. For dinner, head to La Boqueria Market, where you can enjoy tapas and other Spanish delicacies.
Start your day with a visit to Park Güell, one of Barcelona's most iconic landmarks, and home to many of Gaudi's unique structures. Then, head to Barceloneta Beach, where you can soak up the sun and enjoy the Mediterranean Sea. In the evening, head to Poble Espanyol, an open-air museum that showcases Spanish architecture and culture. There, you can enjoy a variety of shops, restaurants, and bars.
Spend your last day exploring the bohemian neighborhood of Gracia. Start by visiting Casa Vicens, one of Gaudí's earliest works. Then, head to Plaza del Sol, a lively square with many bars and restaurants. In the evening, head to the El Nacional food hall, which features many different cuisines from around Spain. End your night by visiting one of Barcelona's many rooftop bars, such as the Sky Bar at the Grand Hotel Central.
For an unforgettable experience, consider taking a hot air balloon ride over the countryside just outside of Barcelona. Another great option is to take a day trip to Montserrat, a stunning monastery located in the mountains near Barcelona. Finally, you can't leave Barcelona without trying the city's famous sangria!