Dublin Ireland Vacations

So My Mother Is Going To Dublin, Ireland On Vacation For Six Days. My Dad Surprised Her With The Tickets. She Is Very Excited Since She Has Wanted To Do This For A Long Time. She Is Leaving In November Around Thanksgiving. Any Hot Spots She'd Find Interesting?
They Have Already Booked The Flight And Hotel I Want To Know Where In Dublin Or Around Can She Visit. For Instance Places To Site See Or Maybe Some Famous Pubs? Museums, Parks, Zoos, Ect.