Dublin Castle in Dublin, County Dublin, Ireland | Museum

It was fortunate that Dublin Castle in Ireland survived the devastation of the 1916 rebellion, the subsequent Civil War and transition to Irish nationhood.  Dublin Castle wasn't destroyed, blown up or burnt down like many other colonial buildings were, nor were the trappings of colonial rule removed. It did however suffer loss of stature and significance. It was neglected and over time, fell into disrepair.
The Four Courts moved into the State Apartments. The Revenue Commissioners (whose function had been carried out in the Castle since medieval times) took over the Ship Street Army Barracks and the former Ordnance Office of the Royal Engineers (currently the Chester Beatty Library). Offices of Government Departments, such as the General Post Office engineers, secretaries and savings bank, took other accommodation. A rare stately use of the Castle was the inauguration of Douglas Hyde as the first President of Ireland in St. Patrick's Hall on 25th June 1938.
Dublin Castle,site has been occupied over the ages and modified to suit its ever-changing functions. All the historic buildings have been restored and it is now been fully integrated into Irish Society.  Dublin Castle now plays host to European Union Presidencies, Heads of State, leaders of business, industry and government. It is also a major tourist attraction and citizens of all nations savour the variety of the facilities and experience the unique historic layers revealed throughout the complex,  from the Norman Tower to the world treasures of the Chester Beatty Library and from the Viking defence bank to the splendid State Apartments.