The Four Courts (Irish: Na Ceithre Cúirteanna[1]) is Ireland's main courts building, located on Inns Quay in Dublin. The Four Courts are the location of the Supreme Court, the High Court and the Dublin Circuit Court. Until 2010 the building also housed the Central Criminal Court. Wikipedia
The dome - a feature of the city skyline for over a century was destroyed during the 1922 civil war. T.J. Byrne, principal architect at the Office of Public Works, and his team erected an elaboratesystem of scaffolding allowing for careful examination of both the supports and the drum. It was discovered that almost all of the Corinthian columns surrounding the dome had been shattered, although the inner wall of granite remained largely intact. It was found on removal of the columns, (a skilled operation in its own right), that because they had originally been carved on all sides, it was possible to simply rotate them so that the damaged sides face inwards. Source: The Courts Service of Ireland