Pre-Christian

Barrow (3)
Boulder Burial (7)
Bullaun Stone (7)
Cairn (14)
Chambered Cairn (5)
Cist (1)
Court Tomb (39)
Cult Stone (2)
Henge
Kist (3)
Linkardstown Burial (2)
Passage Tomb (57)
Petroglyph (7)
Portal Tomb (59)
Prehistoric Settlement (5)
Promontory Fort (2)
Standing Stone (92)
Stone Circle (43)
Stone Row (28)
Wedge Tomb (49)

Early Christian and Medieval

Castle (172)
Church (376)
Clochán (3)
Cross (87)
Cross Pillar (16)
Cross Slab (34)
Decorative Slab (5)
Enclosure (1)
Grave Slab (27)
High Cross (40)
Hill Fort (3)
Holy Well (118)
Leacht (3)
Leacht Cuimhne (6)
Medieval Settlement (3)
Monastic Settlement (19)
Motte-and-Bailey (13)
Ogham Stone (26)
Oratory (12)
Ring Fort (23)
Round Tower (42)
Sheela-na-Gig (30)
Souterrain (1)
Stone Figure (6)
Tau Cross (5)
Town Wall and Gate (34)

Miscellaneous

Mythological Site (5)
Natural Place (6)
Sweat House (3)
Weird Thing (34)

Town Wall and Gate

Athenry North Gate (Galway)
Athenry Town Walls (Galway)
Beach Tower (Waterford)
Black Freren (Kilkenny)
Blossom Gate (Limerick)
Buttergate (Louth)
Carlingford Tholsel and Gaol (Louth)
Carrick-on-Suir (Tipperary)
Cashel (Tipperary)
Cashel (Tipperary)
Cashel (Tipperary)
Clonmel (Tipperary)
Double Tower (Waterford)
Fethard Town Walls (Pierce's Gate) (Tipperary)
French Tower (Waterford)
Glendalough - Gateway (Wicklow)
Golden (Tipperary)
Jamestown (Leitrim)
Loughrea (Galway)
North Gate (Tipperary)
Reginald's Tower (Waterford)
Semilunar Tower (Waterford)
Sheep Gate (Meath)
St. Laurence's Gate (Louth)
The Clock Tower Gate (Cork)
The Maiden Gate (Wexford)
The Town Wall of Ross built in 1265 (Wexford)
Three Bullet Gate (Wexford)
Watch Tower (Waterford)
Water Gate (Cork)
Watergate (Tipperary)
West Gate (Tipperary)
Wexford Town Walls (Wexford)
Youghal (Cork)