Situated in the historical heart of the city, the Dublin castle enjoys one of the most favourable locales. The palatial building dates back to the Norman times and the Record Tower (which is visible today and which is the only remains of medieval Dublin) stands proof to this once magnificent piece of architecture. The Upper Castle Yard, Dubhlinn Gardens and the St Patricks Hall are all worth taking a look at.

Other guided tours at the castle include the State Apartments (venue for many prestigious functions), the Chapel Royal (famous for many a thing) including the beautiful craftsmanship of the galleries and the Undercroft. Housing cultural and regional treasures from around the world is the Chester Beatty Library.