Dublin Castle sits at the heart of the city, an important site first for the Vikings who settled in Dublin and then for the Anglo-Normans when they arrived into Ireland in the late 12th century.
The tower as seen here dates to the reign of King John and was completed during the reign of his son Henry III in the middle of the 13th century although the top section was added to and remodelled in the 19th century.
Dublin Castle is is an essential photographic location to visit during any trip to Dublin, see it with a professional photographer on your next Dublin holiday - see here for more: http://panoramicireland.com/photography-workshops-ireland/book-a-photo-tour-in-dublin