- Dublin Castle: Located in the heart of Dublin city, Dublin Castle has served various functions throughout its history, including being the seat of British rule in Ireland. It features beautiful architecture, including the State Apartments, the Chapel Royal, and the Record Tower.
- Belfast City Hall: Belfast City Hall is a stunning example of Victorian architecture and is located in the heart of Belfast, Northern Ireland. It serves as the headquarters for Belfast City Council and is known for its grand dome, ornate carvings, and lush green surroundings.
- Hillsborough Castle: Situated in County Down, Northern Ireland, Hillsborough Castle is the official residence of the Secretary of State for Northern Ireland and is used by members of the British royal family during visits to the region. It features elegant Georgian architecture and boasts beautiful gardens and parkland.
- Kilkenny Castle: Located in Kilkenny city, Kilkenny Castle is one of the best-preserved medieval castles in Ireland. It offers guided tours that take visitors through its impressive history, including the Great Hall, the Kitchen Tower, and the Picture Gallery.
- Malahide Castle: Situated in Malahide, County Dublin, Malahide Castle is a well-preserved castle and estate. It features beautiful gardens, a stunning rose garden, and an interesting history spanning several centuries.