Barcelona, the city of the sun and architectural wonders can be visited almost free of charge in a few days. Here are the most interesting touristic attractions which are free of charge:
- Walking on La Rambla – a generous boulevard with lots of attractions including the No. 2.
- Mercat de la Boqueria – the market for any South Mediterranean delicacies where you can find seafood, cheese, fruit, jam. It is located on La Rambla no 91.
- The Museum of History (MUHBA) has free entrance on Sunday, between 15-18. Ma-D, 10-19, D 10-18. Ticket price: EUR 7. Address: Plaça del Rei, 08002 Barcelona.
- The Picasso Museum can be visited free of charge on Thursday from 18-21: 30 & on the first Sunday of each month (9-19). Ma-D, 9-19, Thursday 9-21: 30. Ticket price: 12 / 6.5 EUR. Address: Carrer de Montcada 15-23.
- Admire the buildings of the famous architect Antoni Gaudi: Sagrada Familia & Casa Batllo (my favorite). If you are still on Paseig del Gracia, you can also see Casa Lleó Morera & Casa Amatller.
Plaja 
La Pedrera 
Plaja 
La Pedrera - The Montjuic Fountain built in 1929 at the World Exposition is on the hill of the same name. If you do not want to go uphill by foot, there is a funicular (12.7 EUR / person).
- Beach, sunbathing, promenade. The most famous beach is Barceloneta, it is easily reached by metro.
- Known for the elegant statues of Juan Miro, the Park of l’Escorxador (Abattoir Park) is on the Carrer de Tarragona.
- The Seu Cathedral has free entry in the morning and late afternoon. L-D, 8:30 -12: 30 & 17: 45-19: 30. Address: Pla de la Seu, 08002 Barcelona.
- Visit Plaça Reial and see the first works by Antoni Gaudi: Street Lamps.
One can follow free events like concerts, cultural events on ForFreeBarcelona.