The GPO is the headquarters of the Post Office in Ireland, built in Neo-Classical style 1814-1818. In 1916 it was occupied by Irish rebels led by PH Pearse, who read the Proclamation of the Republic outside the front door of the building. The interior was burnt out by shelling from government forces against the rebels, but the exterior survived. Subsequently the GPO was restored, reopening in 1929, and remains a busy working post office. It formerly hosted An Post Museum: this closed in 2015 but you can view the collection online.