One of my favorite stops while we were in Dublin was without a doubt St. Stephen's Green. The huge, old trees to picnic under paired with the duck pond and formal gardens are so relaxing. It is a great refuge from the bustle of the city around you and while walking around you can honestly forget that you are in one of the busiest areas of Dublin. My favorite part to be sure were the fall leaves. Since we are mostly surrounded by palm trees in Nice, it was so so nice just to see the yellows and oranges of fall.