Ireland’s Most Visited Heritage Sites
The OPW (Office of Public Works) cares for, maintains, and operates 780 important heritage sites across the Republic of Ireland. The goal of the organization is to preserve and protect structures in its care while providing safe public access and information to visitors.
The OPW Heritage Card is a single-charge card that grants unlimited access to OPW managed historic sites and visitor attractions for one year, including guided tours. Cards are available for individual adults, seniors, and children, as well as a family card that includes 2 adults and 5 children over 12. Children under 12 can access OPW Heritage sites at no cost.
There is no need to purchase an OPW Heritage Card prior to arriving in Ireland, just buy it at the first fee-paying OPW site you visit.
Ireland's Most Visited Heritage Sites in 2024
Each year Ireland's Office of Public Works share the previous year's data about visitor numbers and the most visited OPW sites. in 2024, recorded visitors to Ireland's heritage sites exceeded 13.8 million
The two most-visited heritage sites carry no fee, and both are located in Dublin.
St. Stephen's Green, a wonderful green space in the heart of the city centre, saw nearly 4.5 million visitors in 2024. This isn't surprising as the park is a wonderful place for a walk and the playground is quite nice. It is also a pretty ‘shortcut' as you walk point to point in Dublin.
The Phoenix Park visitor centre recorded approximately 2 million visitors. Again, no surprise as this massive park, less than 5km from Dublin city centre and easy to reach via bus or Luas, is a popular spot for recreation as well as home to Dublin Zoo.
Most Popular Heritage Sites in Ireland (Ticketed Admission)
Dublin Castle, Dublin – 534,014 visitors
Dublin Castle leapt into first place this year, unseating 2023's most popular castle (which is now at #2).
Located in the heart of Dublin, Dublin Castle was built in the early 13th century and served as the center of power for the English (and later British) government.
Prebooking is recommended for the guided tour as space can be limited. Bookings can be made up to 15 days in advance.
Kilkenny Castle & Parklands, County Kilkenny – 429,546 visitors
The central point of Kilkenny City, Kilkenny Castle has the feel of a royal palace, making it a very grand place to visit. It's important to note that the parklands are free to visit.
Prebooking is not required.
Rock of Cashel, County Tipperary – 365,505 visitors
The magnificent Rock of Cashel was originally built as a fortress in the late 4th or 5th century as the seat of the kingship of Munster and the inauguration place of its kings. In the 7th century St. Patrick baptized a King of Munster here and in 1101 the reigning King gave the fortress to the Church. This impressive structure was given into State care as a national monument in 1869.
Prebooking is not required. I do highly recommend joining one of the guided tours as the hitory of the site is fascinating.
Cormac's Chapel, which contains the only surviving Romanesque frescoes in Ireland, can only be accessed by guided tour. Tickets for this tour ‘extension' are only available on site and space is limited.
Kilmainham Gaol, Dublin – 243,078 visitors
Opening in 1796 as the new County Gaol for Dublin, thousands of men, women, and children were held here for everything from minor offences to organized rebellion. The stories you will hear are powerful in both sadness and strength.
Prebooking is necessary as tickets sell out quickly. Booking opens 28 days in advance of your visit at midnight Irish time. Here's how to book your tickets.
Dún Aonghasa, Inis Mór, Aran Islands, County Galway – 146,089 visitors
Dún Aonghasa is the largest prehistoric stone fort on the Aran Islands. Consisting of 3 massive drystone defense walls further surrounded by a dense band of jagged stones and perched on the cliff edge, Dún Aonghasa is an imposing structure built for defense.
Prebooking is not required.
Visitors should note that there is a 1km walk from the visitors centre to the site that includes rough, natural rock. There is no fencing or barriers at the cliff edge.
Ross Castle, County Kerry – 143,016 visitors
Ross Castle, located in Killarney National Park, is a top spot for the jaunting cars as well being the boat launch location for the Lakes of Killarney and Gap of Dunloe.
This 15th century tower house was one of the last strongholds in the region to surrender to Oliver Cromwell in 1652.
Guided tours are available March thru October, but you can visit the grounds year-round at no charge. Prebooking is not necessary.
Brú na Bóinne (including Newgrange and Knowth), County Meath – 133,991visitors
I have no doubt that the only reason Brú na Bóinne is number 7 on this list is because tour numbers are limited.
This UNESCO World Heritage site consists of 3 prehistoric passage tombs – Knowth, Newgrange, and Dowth – built circa 3200BC and contain the largest collection of megalithic art in Wes
The OPW Heritage Card is a single-charge card that grants unlimited access to OPW managed historic sites and visitor attractions for one year, including guided tours. Cards are available for individual adults, seniors, and children, as well as a family card that includes 2 adults and 5 children over 12. Children under 12 can access OPW Heritage sites at no cost.
There is no need to purchase an OPW Heritage Card prior to arriving in Ireland, just buy it at the first fee-paying OPW site you visit.
Ireland's Most Visited Heritage Sites in 2024
Each year Ireland's Office of Public Works share the previous year's data about visitor numbers and the most visited OPW sites. in 2024, recorded visitors to Ireland's heritage sites exceeded 13.8 million
The two most-visited heritage sites carry no fee, and both are located in Dublin.
St. Stephen's Green, a wonderful green space in the heart of the city centre, saw nearly 4.5 million visitors in 2024. This isn't surprising as the park is a wonderful place for a walk and the playground is quite nice. It is also a pretty ‘shortcut' as you walk point to point in Dublin.
The Phoenix Park visitor centre recorded approximately 2 million visitors. Again, no surprise as this massive park, less than 5km from Dublin city centre and easy to reach via bus or Luas, is a popular spot for recreation as well as home to Dublin Zoo.
Most Popular Heritage Sites in Ireland (Ticketed Admission)
Dublin Castle, Dublin – 534,014 visitors
Dublin Castle leapt into first place this year, unseating 2023's most popular castle (which is now at #2).
Located in the heart of Dublin, Dublin Castle was built in the early 13th century and served as the center of power for the English (and later British) government.
Prebooking is recommended for the guided tour as space can be limited. Bookings can be made up to 15 days in advance.
Kilkenny Castle & Parklands, County Kilkenny – 429,546 visitors
The central point of Kilkenny City, Kilkenny Castle has the feel of a royal palace, making it a very grand place to visit. It's important to note that the parklands are free to visit.
Prebooking is not required.
Rock of Cashel, County Tipperary – 365,505 visitors
The magnificent Rock of Cashel was originally built as a fortress in the late 4th or 5th century as the seat of the kingship of Munster and the inauguration place of its kings. In the 7th century St. Patrick baptized a King of Munster here and in 1101 the reigning King gave the fortress to the Church. This impressive structure was given into State care as a national monument in 1869.
Prebooking is not required. I do highly recommend joining one of the guided tours as the hitory of the site is fascinating.
Cormac's Chapel, which contains the only surviving Romanesque frescoes in Ireland, can only be accessed by guided tour. Tickets for this tour ‘extension' are only available on site and space is limited.
Kilmainham Gaol, Dublin – 243,078 visitors
Opening in 1796 as the new County Gaol for Dublin, thousands of men, women, and children were held here for everything from minor offences to organized rebellion. The stories you will hear are powerful in both sadness and strength.
Prebooking is necessary as tickets sell out quickly. Booking opens 28 days in advance of your visit at midnight Irish time. Here's how to book your tickets.
Dún Aonghasa, Inis Mór, Aran Islands, County Galway – 146,089 visitors
Dún Aonghasa is the largest prehistoric stone fort on the Aran Islands. Consisting of 3 massive drystone defense walls further surrounded by a dense band of jagged stones and perched on the cliff edge, Dún Aonghasa is an imposing structure built for defense.
Prebooking is not required.
Visitors should note that there is a 1km walk from the visitors centre to the site that includes rough, natural rock. There is no fencing or barriers at the cliff edge.
Ross Castle, County Kerry – 143,016 visitors
Ross Castle, located in Killarney National Park, is a top spot for the jaunting cars as well being the boat launch location for the Lakes of Killarney and Gap of Dunloe.
This 15th century tower house was one of the last strongholds in the region to surrender to Oliver Cromwell in 1652.
Guided tours are available March thru October, but you can visit the grounds year-round at no charge. Prebooking is not necessary.
Brú na Bóinne (including Newgrange and Knowth), County Meath – 133,991visitors
I have no doubt that the only reason Brú na Bóinne is number 7 on this list is because tour numbers are limited.
This UNESCO World Heritage site consists of 3 prehistoric passage tombs – Knowth, Newgrange, and Dowth – built circa 3200BC and contain the largest collection of megalithic art in Wes