The Shelbourne Hotel is a luxury 5 star hotel right in the city centre of Dublin. It has been beautifully restored and is an icon of Dublin. Inside it is very stylish with chandeliers, plush carpets and rooms. The Horseshoe bar is famous and I heard that Michael Collins sat in one of the chairs by the window to sign the Treaty!
You can take a walk down Grafton Street for some cityscape photos and of course there is St Stephens Green with the ducks!