The building at Plaça del Pedró in Barcelona that has been taken over by squatters. The original lock on the building’s front door has been ripped out and replaced, and each studio-apartment door bears the marks of a cutter where the lock has been changed.  Photograph: Mary Boland

In Barcelona’s medieval Raval neighbourhood, renowned for much of the 20th century as the hub of the city’s drug, prostitution and crime underworld, a(...)

Collective action: activists protest outside a Banco Popular in Barcelona. Photograph: Josep Lago/AFP/Getty

Once the word gets out, the social networks hum with the details: tomorrow at 10am; here’s the address. That’s when the army of protesters descends, s(...)