History buffs, be thrilled – home to two museums, a library, cafés, gardens, and magnificent towers and state rooms, the extensive castle grounds of the ancient Dublin Castle is a treasure trove of Irish history. Did you know that this 13th century castle rests upon the land that used to be a Viking Settlement? Learn these and other bits of trivia as you join a guided tour for an in-depth look into the lavish royal quarters, including the throne room, or drop by the informative museums that will reel in even the disinterested. The castle’s impressively long history as a defensive centre against invaders, as a Parliament house, as a Court of Justice, and now as the grounds for state ceremonies, will hardly be overshadowed by the castle’s equally exquisite architecture and décor of stained glass and chandeliers. Every inch a wonder, there is no doubt that Dublin Castle will monopolize your entire day as you lose yourself in this endless expanse of vivid history.