Think of a famous Irish singer. Go.
Kilmainham Gaol (jail). (The "kil" prefix that you see in a lot of Irish names, means "church".) The most (in)famous jail in Ireland, which closed in the 1920s. Held many of the political prisoners from the five rebellions in Irish history. Check the story of Joseph Plunkett.
They filmed the movie "In the Name of the Father" here.
Inside a cell. I'm a prisoner of something. I'm a POD.
Dublin Zoo. Third oldest in the world.
I heard rumours that guinness tasted better in Ireland, and yes, yes, yes, it does. Especially when it comes out of the Guinness factory in Dublin.
View from the 360 degree bar on a "lovely" day.