Barcelona

Here's an ideal itinerary for 3 days in Barcelona that includes art nouveau buildings and uses public transport:

Day 1:

• Start your day by visiting the iconic Sagrada Familia, a stunning basilica designed by Antoni Gaudi. You can take the metro to the Sagrada Familia station.
• After exploring the basilica, head to Park Guell, another masterpiece by Gaudi. Take the metro to Lesseps station and then catch bus number 24 to Park Guell.
• Spend the afternoon wandering around the park, admiring the colorful mosaics and sculptures.
• In the evening, head to the Gothic Quarter, one of the oldest neighborhoods in Barcelona. Take the metro to Jaume I station and explore the narrow streets, historic buildings, and charming squares.

Day 2:

• Start your day by visiting Casa Batllo, a stunning art nouveau building designed by Gaudi. Take the metro to Passeig de Gracia station and walk to Casa Batllo.
• After exploring Casa Batllo, head to Palau de la Musica Catalana, another beautiful art nouveau building. Take the metro to Urquinaona station and walk to Palau de la Musica Catalana.
• Spend the afternoon exploring the trendy El Born neighborhood, known for its boutiques, cafes, and galleries. Take the metro to Barceloneta station and walk to El Born.
• In the evening, head to La Rambla, a bustling pedestrian street lined with shops, restaurants, and street performers. Take the metro to Liceu station and walk to La Rambla.

Day 3:

• Start your day by visiting Casa Mila, another stunning art nouveau building designed by Gaudi. Take the metro to Diagonal station and walk to Casa Mila.
• After exploring Casa Mila, head to the Picasso Museum, which houses an impressive collection of works by the famous artist. Take the metro to Jaume I station and walk to the Picasso Museum.
• Spend the afternoon exploring the trendy Gracia neighborhood, known for its bohemian vibe and independent shops. Take the metro to Fontana station and walk to Gracia.
• In the evening, head to Montjuic, a hill overlooking the city that offers stunning views. Take the metro to Paral-lel station and then catch the funicular to Montjuic.