Dublin Castle

was until 1922 the seat of the United Kingdom government'sadministration in Ireland, and is now a major Irish government complex. Most of it dates from the 18th century, though a castle has stood on the site since the days of King John, the first Lord of Ireland. The Castle served as the seat of English, then later British government of Ireland under the Lordship of Ireland (1171–1541).

The castle today is a major tourist attraction and conferencing destination. The building is also used for State dinners (the most recent being for Queen Elizabeth II in 2011) and most significantly, the inauguration of the presidents of Ireland

Cahir Castle

one of the largest castles in Ireland, is sited on an island in the river Suir. It was built from 1142 by Conor O'Brien, Prince of Thomond. Now situated in Cahir town centre, County Tipperary, the castle is well preserved and has guided tour and audiovisual shows in multiple languages

The Rock of Cashel

also known as Cashel of the Kings and St. Patrick's Rock, is a historic site located at Cashel, County Tipperary, Ireland.

According to local mythology, the Rock of Cashel originated in the Devil's Bit, a mountain 20 miles (30 km) north of Cashel when St. Patrick banished Satan from a cave, resulting in the Rock's landing in Cashel. Cashel is reputed to be the site of the conversion of the King of Munster by St. Patrick in the 5th century.

The Abbey of Kells

\is a former monastery in Kells, County Meath, Ireland, 40 miles (64 km) north of Dublin. It was founded in the early 9th century, and the Book of Kells was kept there during the later medieval and early modern periods before finally leaving the abbey in the 1650s. Much of the Book of Kells may have been created there, but historians cannot be certain of the exact date and circumstances of its creation.

Old Jameson Distillery museum

 is an Irish whiskey tourist attraction located just off Smithfield Square in Dublin, Ireland. Jameson Distillery Bow St. is the original site where Jameson Irish Whiskey was distilled until 1971.It is now a visitors centre that provides guided tours, tutored whiskey tastings, JJs bar and a gift shop.

Guinness Brewery

is a brewery founded in 1759 in Dublin, Ireland, by Arthur Guinness. The company is now a part of Diageo, a company formed from the merger of Guinness and Grand Metropolitan in 1997. The main product of the brewery is Guinness Draught.

There is an attached exhibition on the 250-year-old history of Guinness, called the Guinness Storehouse.