Montjuïc Castle’s dungeons have over 650 graffiti etched on their walls by prisoners. Thanks to the documenting done so far in dungeons 3 and 4, we now have a record of daily life for prisoners in those confines, as well as the experiences of a diverse range of prisoners and historical periods, from the last third of the 19th century up to the final stages of the Spanish Civil War. A journey through Barcelona, and the world, over the last 150 years.