Though designed in neo-gothic style, it arguably houses the most extensive collection of arts and crafts and Celtic Revival artifacts of any single building in Ireland.

Its most noteworthy feature is the extensive collection of stained glass windows by the Dublin-based An Túr Gloine studio.

Sculptors represented are John Hughes and Michael Shortall, and the architect William Alphonsus Scott also contributed designs for metalwork and woodwork.

[1] The foundation stone was laid on 10 October 1897 and the structure was completed in 1902; most of the interior features date from the first decade on the twentieth century with the exception of the stained glass windows which continued to be commissioned up until the 1950s.

[2] There are ten windows by Michael Healy, including the first one he both designed and executed, St Simeon, and also one of his undisputed finest, The Last Judgement completed in 1940, a year before he died.