The City Hall, Dublin, originally the Royal Exchange, is a civic building in Dublin, Ireland. It was built between 1769 and 1779 to the designs of architect Thomas Cooley and is a notable example of 18th-century neoclassical architecture in the city. It was originally a meetingplace for Dublin businessmen. In the 1850s, the City Corporation bought the Royal Exchange and converted it for use by the city government. (wikipedia.org