Nowadays, Kilkenny Castle is effectively three-sided. One of the four walls - and one of the great round drum towers - has disappeared over time.
Where did it go? Well, the Eastern wall and the North-Eastern tower were blown up during the 1650 Cromwellian siege of Ireland.
One of the most instantly recognised buildings in Ireland, Kilkenny Castle has been an important site since Strongbow constructed the first castle, probably a wooden structure, in the 12th century.
"The dearest thing I know is a memory of sunny Sunday mornings in Kilkenny; the lovely line of castle, roof-top, spire and round tower against the pale blue sky, the sun revelling in the quiet colours of old stone, old walls, old tree; the tip-tap of the feet of people on the flagstones, and above all the flocking floating notes of the church bells. Sunday has a flavour of its own there, a clean, sweet, warming flavour."
Francis McManus, Kilkenny-born writer
All-time top scorer in the All-Ireland Senior Hurling Championship is TJ REID with 641 points in 82 games, scoring 30-551.
The Butler family handed Kilkenny Castle over to the people of Kilkenny in 1967 – for £50!
The population of County Kilkenny is 95,419 according to the 2011 census ... plus an undisclosed number of Kilkenny cats.
Kilkenny Castle has soared past some incredible competition to take the title of the most popular paid visitor attraction managed by the Office of Public Works (OPW) in Ireland.
AKA is a voluntary run arts festival that showcases the hard work and talent of independent artists and community groups across Kilkenny county and city.