O'Connell Street looked very different in 1916 than it does today. Located in the heart of Dublin, Sackville Street – as it was known – was lined with elegant buildings, and one of the most impressive streets in Europe. All this changed during the Easter Rising when the rebels commandeered the General Post Office (GPO). They hoisted the Irish flag and launched their armed revolt. Retaliation was swift: a British gunboat on the Liffey shelled the area, reducing many buildings to rubble. We look at the streetscape during and after the fighting.