This fourth edition of 48h Open House Barcelona forms part of the worldwide Open House initiative, which seeks to open up outstanding architecture for all to experience and to encourage dialogue about urban space.
For two days visitors get the chance to take a look inside over 150 buildings around the city. These range from apartments on Pg. de Gràcia to hotels, schools, libraries, shops and private homes and encompass Roman ruins to contemporary architecture, Catalan gothic, neoclassic, modernist and modern. Architects and volunteers will be on hand to offer more information about the buildings.
The event's website has a list of the open buildings organised by district and accompanied by a photo and brief explanation of the building's architectural significance.
Although entrance to every building is free, anyone who doesn't feel like queuing (inevitable in some of the most emblematic buildings) can buy a pass that give them priority entrance (€35 for one day and €55 for the weekend).
There are also a number of themed tours on offer, including "Fábriques de Creaciò" which showcases old industrial buildings that have been adapted into cultural and educational spaces and the "Theatre and City" tour, which looks at how entertainment activities have transformed Barcelona's urban structure.