There's nothing quaint about Dublin. If you want to see quaint, hire a copy of the 'quiet man' on video or dvd;-)
My top 5 interesting places to visit would be
(1)The house of Lords chamber of the bank of Ireland building on Dame street. On Tues and Thursdays there is a free lecture on the history of the place. (2) Trinity College. (3)Grafton street. The only street I've ever walked, where you can hear Jaz music at the beggining and a string quartet by the time you reach the end. In between, you'll probably have heard rendtions of beatles songs, seen a crazy bloke swallow fire and witnessed some nutters walking on glass. (4) For a change from the predictable, visit pooebeg power station (The really tall chimneys) You can go on a tour and it's located smack bang in the middle of the industrial docks area. (5) The Masonic lodge on Kildare street. (6) (OK, I said 5, but I'm being greedy!) Up the top of Graton street is Stevens Green. A nice respite from a tiring day. It's a city park with a sculpted landscape. It includes 2 lakes with an abundance of bird life which you can feed - to your cat! It also contains a statue of Oscar Wilde, who you can go up to and tell about the interesting tiring day you've had!