Carrickfergus Castle, County Antrim
This castle first appears in the official English records in 1210 when the notorious King John laid siege to it and ultimately took control. These days it’s remarkably intact despite 750 years of continuous military occupation.
Dunluce Castle, County Antrim
Dating back to the 16th century, the dramatic ruins of Dunluce Castle, located on the North Antrim coast, stand on a 100ft high basalt stack with a sea cave underneath.
Stormont Castle
Situated near Belfast and built in 1830 by Rev. John Cleland, the grand Stormont Castle now serves as the Belfast Headquarters of the Secretary of State for Northern Ireland.