the coast of Croatia, very beautiful, there is also one of the two coliseums that the Romans built out side of Italy. been to Croatia 4 or 5 times, was never let down.
Barcelona, another one of my all time favorites. the bars are great, nice old city to wonder around in also. lots of history as well. be sure to check out sagrada la familia and park guell, both mentioned above, and probably spelt wrong by me
Ireland is a fantastic place as well... those hexagonal things you want to see are in the north i believe, and its called the giants causeway. iv never been there, i saw the southern half of ireland during my time there.
hungry is another of my favorites, budapest is a gorgeous city and there is lots to see and do. be sure to hike up to the citadel and enjoy the views then walk on over to the royal palace and old cathedral on castle hill next to it. and check out one of the cities around balaton while there is a festival. there are lots of cities and one or more is throwing a festival almost every weekend it seems, lots of parties, fun time. lots of funny lookin muscle head hungarian dudes with no necks too, its worth a laugh.
just dont accept help from anyone at a train station in just about all of europe, lots of pick pockets and scammers hangin around those places.