Conveniently located just a short drive away from the Giant's Causeway and the Dunseverick village, the Dunseverick Castle is another monument set amid stirring surroundings. Even though only the ruins of the castle still stand on the site, it is a landmark of great historical significance, believed to be the place where, back in the 5th century, St. Patrick baptized Olcรกn, the Bishop of Ireland. In addition to that, the scenery and the views over the cliffs nearby also make it a must-visit while on a Northern Ireland tour.