If your trip to Dublin is all sorted out but your itinerary is looking a little empty, we can give you a few hints and tips. Your pals back home will be green-eyed with envy when they see all the incredible photos of you at Ha' Penny Bridge and Dublin Castle. And after they've finished hearing about all the epic experiences you had while at Trinity College and St. Stephen's Green, they'll be racing to book their own vacation to Dublin! You'll have to roll out of bed early if you're planning to check out all the interesting attractions that this place has to offer. The Book of Kells and Brown Thomas Flagship Store are no-brainers. O'Connell Bridge and Gaiety Theatre shouldn't be missed either. Plan a stop at Croke Park. It's one sight you'll usually find on travelers' to-do lists. If you still have space on your schedule, O'Connell Street and Grafton Street will keep you entertained as well.