Northern Ireland where you can stop to see the filming locations of HBO's hit series, Game of Thrones. Northern Ireland is home to a number of the show's filming sites - many of which are free to visit.
Titanic museum in Belfast, Ireland. Along with Pearl Harbor, which I was a bit too young to remember, one of the most sobering museums/memorials I have ever seen. The audio clips and pictures of children were especially heart wrenching.