This is a list of the tallest structures on the island of Ireland. Those in Northern Ireland are denoted by a light blue background, the rest are in the Republic of Ireland. Tallest churches Tallest structures Other categories Entries in the list that are in Northern Ireland are denoted by an asterisk, the others being in the Republic of Ireland. SculpturesSpire of Dublin, 120 m (394 ft) Spire of Hope, St Anne’s Cathedral, Belfast*, 80m (262 ft) Gantry Cranes"Samson", Harland and Wolff, Belfast*, 106 m (348 ft) BridgesRiver Suir Bridge, Waterford, 100 m (330 ft) Boyne River Bridge, 95 m (312 ft) WindmillsKilgarvan Wind Farm (group of 14 wind turbines), 93 m (305 ft) ObelisksWellington Monument, Phoenix Park, 63 m (207 ft) (Tallest in Europe) LighthousesFastnet Rock Lighthouse, 44.5 m (146 ft) StadiumsCroke Park, 40 m (131 ft) Air traffic control towersDublin Airport ATC Tower, 86.9m Moving sculpturesIrish Wave, Park West, Dublin, 35.4 m (116 ft) (Tallest in Europe) Round towersKilmacduagh monastery, 34 m (112 ft) CastlesNenagh Castle Keep, 31 m (102 ft) Standing stonesPunchestown, 6.5 m (21 ft) High crossesMuiredach's High Cross, Monasterboice, 6.45 m (21 ft) Former Bellacorick Cooling Tower, 89 m (290 ft), demolished 2007 Arrol Gantry, 70 m (228 ft), demolished 1969 Churchill House, Belfast, 66 m (215 ft), demolished 2004 Boyne Obelisk, 53 m (174 ft), destroyed 1923 Ballymun Flats, 42 m (136 ft), demolished 2004-2015 Nelson's Pillar Monument, 41 m (134 ft), destroyed 1966 Walker's Monument, 32 m (105 ft) destroyed 1973 Craigyhill Bonfire, 61 m (203 ft) destroyed 2022 See also List of tallest buildings in Ireland List of tallest buildings and structures in Belfast List of tallest buildings and structures in Dublin References Other sources Tallest structures in Ireland Ireland Tallest structures