Photo: Didier Descouens, CC BY-SA 4.0 Free places to visit in Barcelona
Photo: Didier Descouens, CC BY-SA 4.0 
Photo: Bernard Gagnon, CC BY-SA 3.0 Parc de la Ciutadella
Free, always
Photo: Avda, CC BY-SA 3.0 Magic Fountain of Montjuïc
Free at certain timesBarceloneta Beach
Free, always
Photo: Llull, CC BY-SA 2.0 Gothic Quarter
Free, alwaysArc de Triomf
Free, always
Photo: uayebt, CC BY 2.0 Picasso Museum
Free at certain times
Photo: Jvhertum, CC BY-SA 3.0 National Art Museum of Catalonia (MNAC)
Free at certain times
Photo: :Puigalder, Public domain Montjuïc Castle
Free at certain times
Photo: Till F. Teenck, CC BY-SA 2.5 Labyrinth Park of Horta
Free at certain times
Photo: Kent Wang, CC BY-SA 4.0 Santa Maria del Mar
Free at certain times
Photo: Canaan, CC BY-SA 4.0 Sagrada Família (outside)
Free outside, paid inside
Photo: Andrew, CC BY-SA 3.0 Passeig de Gràcia facades
Free outside, paid inside
Photo: essetefano, CC BY 3.0 Park Güell outer park
Free outside, paid insideEl Born Cultural Centre
Free outside, paid inside
Photo: Zarateman, CC0 MACBA square
Free outside, paid inside
Photo: Jordiferrer, CC BY-SA 3.0 Temple of the Sacred Heart, Tibidabo
Free outside, paid inside
Photo: Canaan, CC BY-SA 3.0 Bunkers del Carmel
Free at certain timesCarretera de les Aigües
Free, always
Photo: Fabio Alessandro Locati, CC BY-SA 3.0 Mirador de l’Alcalde
Free, alwaysMossèn Costa i Llobera Gardens
Free, always
Photo: böhringer friedrich, CC BY-SA 2.5 Port Vell and Rambla de Mar
Free, alwaysBogatell Beach
Free, alwaysSant Antoni Market
Free, always
Photo: The original uploader was Forbfruit at German Wikipedia., CC BY-SA 3.0 Santa Caterina Market
Free, alwaysEls Encants flea market
Free, always
Photo: Mac9, CC BY-SA 3.0 Plaça Reial
Free, alwaysGràcia squares
Free, always
Photo: Tango7174, CC BY-SA 4.0 Plaça de Catalunya
Free, alwaysPort Olímpic
Free, alwaysPlaça d’Espanya
Free, alwaysMirador del Migdia
Free, always
Photo: Canaan, CC BY-SA 3.0 Joan Miró Park
Free, always
Photo: Ricardo Mangual, CC BY 2.0 Mar Bella Beach
Free, alwaysRambla del Raval
Free, alwaysArc de Triomf promenade
Free to visitBasilica de la Mercè
Free, always
Photo: MarcelloScotti, CC BY-SA 4.0 Plaça de Sant Felip Neri
Free, alwaysPont del Bisbe
Free, alwaysMercat de la Concepció
Free, alwaysTuró del Putxet
Free, alwaysJardins de Mossèn Cinto Verdaguer
Free, alwaysPlatja de la Nova Icària
Free, always
Photo: Diliff, CC BY 2.5 Torre Glòries
Free outside, paid insideCarrer de Blai
Free, alwaysRambla del Poblenou
Free, alwaysParc de Diagonal Mar
Free, always
Photo: J Irigoyen, CC BY-SA 3.0