397 Old Ruins to Explore in Ireland

This is a large castle in the town of Birr in County Offaly, Ireland. It is the home of the 7th Earl of Rosse and his family, and as such the residential areas of the castle are not open to the public, though the grounds and gardens of the demesne are publicly accessible, and include a science museum and a café, a reflecting telescope which was the largest in the world for decades and a modern radio telescope.

On the eastern outskirts of Wicklow Town on a rock above the sea lies the ruin of Black Castle. Only a few fragments of the wall remain of the castle built by the Normans at the end of the 12th century. It stands on a rocky promontory over the sea, at the eastern side of the town. Following the arrival of the Norman’s in 1169 Earl Strongbow was granted the lands along the East Coast. He in turn granted those lands to Baron Maurice Fitzgerald on condition that he build castles for protection.

This is the last remaining gate from the medieval stone walls of Kilkenny, Ireland. This is the only gate from the old Norman city walls still standing, albeit with the help of metal bracing these days. Crumbling sections of the old walls remain throughout the city centre.

Blarney Castle is a medieval stronghold in Blarney, near Cork, Ireland. The castle originally dates from before 1200, when a timber house was believed to have been built on the site, although no evidence remains of this. Around 1210 this was replaced by a stone fortification. The castle is now a partial ruin with some accessible rooms and battlements. Tourists visiting Blarney Castle may hang upside-down over a sheer drop to kiss the stone, which is said to give the gift of eloquence.

Blarney Woollen Mills was built in 1823. It was used mainly for spinning and weaving wool. They carved out a niche in tweeds, woolen worsted cloths, knitting wools and hosiery. A fire at Christmas in 1869 saw the destruction of the mill. It was re-built the following year and still stands to this day. Business declined in the mid-20th century, and Blarney Woollen Mills closed in 1973.

This is the largest working windmill in Ireland and the only windmill along Ireland’s Wild Atlantic Way. It was authentically restored to full working order in the 1980s. The mill has five floors, ground floor, intermediate floor, grinding floor, stone floor and cap floor. An adjacent visitor centre has displays on the history of the mill, its technology and on emigration from the area after the great famine. There is also a bird-watching platform equipped with telescopes.

Bonane Heritage Park is an private archaeological preserve and tourist attraction between Bonane and Kenmare in County Kerry, Ireland. The park has over 250 well-preserved sites from the Stone, Bronze and Iron Age right up to pre-Famine times and celebrates the first settlers who colonised the Irish countryside. It is a stunning walk laden with archeological treasures that all of the family will enjoy.

Boyle Abbey, situated in the town of Boyle, County Roscommon, is a well preserved monastery that was founded in the 12th century. Today, only small parts of the cloister remain, as the Elizabethans converted it into barracks in 1592 and the Cromwellians besieged it in 1645. Despite its ruined state, the abbey continues to be an excellent example of Ireland’s early Cistercian foundations.It was the first Cistercian monastery to be successfully founded in the province of Connacht.

The Boyne Viaduct, a 30-metre-high railway bridge, or viaduct, that crosses the River Boyne in Drogheda, carrying the main Dublin–Belfast railway line. During World War II, the viaduct was identified by the British as being of great strategic importance as part of the British plans for a counter-attack following a German invasion of Ireland.

The Penal Cross was unveiled at 5pm on Sunday 25th September 1938 to the memory of a priest shot while saying open air Mass in penal days in the dawn of a Christmas Day. The inscription on the sandstone cross reads, "To the memory of the priest who was shot here while celebrating Holy Mass on Christmas Day about the year 1754. Tradition assigns the name of Father Mc Kenna to this Martyr of the Penal Days. Erected September 1938"

It is classified as a portal tomb by archaeologists and there are approximately 174 of these monuments in the country. The tombs generally consist of two large portal-stones defining the entrance and a back-stone, all of which support the cap-stone. The tomb is listed as a National Monument. Known as the Kernanstown Cromlech, sometimes spelled as Browneshill Dolmen, it is sited on the former estate house of the Browne family from which it takes its name.

Brú na Bóinne is one of the most important prehistoric megalithic sites in Europe drawing thousands of visitors daily. Each of the tombs has their own myths to explore against the beautiful backdrop of the gently meandering River Boyne. The archaeological landscape within Brú na Bóinne is dominated by the three well-known large passage tombs, Knowth, Newgrange and Dowth, built some 5,000 years ago in the Neolithic or Late Stone Age.

It is a large 15th-century tower house in County Clare, Ireland. The spot on which this castle stands has been occupied for over 1000 years. From the Vikings to the Normans, great Irish Earls and noble Lords and Ladies. The castle and the adjoining folk park are run by Shannon Heritage as tourist attractions.

This National Monument, is a well-preserved 15th century Norman tower house with a round gate tower, situated in the parish of Burnchurch, County Kilkenny, Ireland. It is said to have been built and owned by the Fitzgeralds of the house of Desmond in 15th century and continued to be occupied until 1817.It is known for being one of several Irish towers with the slightly narrower sides of the castle extending up an additional floor, creating in essence a pair of tower wide turrets.

Burncourt Castle is situated near Burncourt off the M8 five miles south west of Cahir. It is a fortified house and a National Monument. The castle comprises a rectangular central block with a four storey square tower at each corner. The interior was lit by mullioned windows. It is one of the iconic attractions in this area and there are so many opportunities to study about the history.

One of Donegal's best known castles due to its prominent location along the Derry-Letterkenny road. It was built around 1560 and was one in a network of castles around Inishowen owned by the O’Dohertys. The structure had three stories, two circular watchtowers, a small vaulted chamber, and openings for muskets. It is now one of the iconic attraction in this area.

The Buttermarket became a unique addition to Enniskillen town almost 30 years ago, when an early 19th century dairy market was restored, and new life was injected into the cobbles in the form of a quaint, picturesque Craft Centre.It comprises of nineteen art and craft units and a coffee shop, housed in the restored early 19th century dairy market. The Buttermarket's unique position in the heart of Enniskillen makes it the central focus for the thriving craft industry in Fermanagh.

Cahir Castle is one of Ireland’s largest and best-preserved castles. It stands proudly on a rocky island on the River Suir. So effective was its design that it was believed to be impregnable, but it finally fell to the earl of Essex in 1599 when heavy artillery was used against it for the first time. Granted to the powerful Butler family in late 14th century, the castle was enlarged and remodelled between the 15th and 17th centuries. It fell into ruin in the late 18th century.

A majestic castle situated in the townland of Carbury, on the borders of Kildare and Offaly. The area is dominated by the ruins of this great Tudor mansion set atop Carbury Hill, which was also known as Fairy Hill. It is a typical tower house- a single, multi storied rectangular building, with various annexes containing staircases and latrines.

Carey's Castle, is an absolutely charming and picturesque 18th century structure situated in a glen beside the Glenary River in a scenic woodlands near Clonmel. There is a small lawn with picnic site close to the car park. A walk of about 500m takes you to Carey’s Castle, through mixed woodland and there is a pleasant walking path along the river bank for about 600m.