Discover 237,537 places worth finding across Ireland.
Find overlooked castles, waterfalls, cliffs, beaches, forests, walks and ancient monuments across all 32 counties. Choose any place below, or use the nearby map to find what is around you.
- Next place in the full archive: Fairy fort / earthen ringfort in Baile Na NáithFairy fort / earthen ringfort · Baile Na Náith
- Another way through the archive: water pump — College Roadwater pump · CASTLEKNOCK (WITHOUT PHOENIX PARK)
- Another way through the archive: Gallán — An Droim RéidhStanding stone · An Droim Réidh
- Another way through the archive: Fulacht fia in PullaghFulacht fia · Pullagh
- Another way through the archive: RATH in GlenroanRATH · Glenroan
- Another way through the archive: Enclosure in Killaha EastEnclosure · Killaha East
The archive in numbers
Lemma 1 · Complete cycle
pₙ₊₁ = (pₙ + 1) mod 237,537
Adding one has no common divisor with the archive size except one. The first choice therefore reaches every one of the 237,537 place pages exactly once before it repeats.
Lemma 2 · Six ways onward
D = {1, 97, 997, 10,007, 50,021, 100,003}
Each page offers these six forward distances. The distance of one preserves the complete cycle; the other five jump to far-apart parts of the same archive.
Lemma 3 · County total
Σ Ncounty = 237,606; unique pages = 237,537
The 32 county lists contain 237,606 placements. They become 237,537 different page addresses because 69 placements repeat an address already present in another county list.
All 32 county counts
| Antrim | 6,564 |
| Armagh | 1,424 |
| Carlow | 2,399 |
| Cavan | 4,271 |
| Clare | 10,203 |
| Cork | 29,379 |
| Derry | 2,605 |
| Donegal | 6,950 |
| Down | 5,464 |
| Dublin | 12,718 |
| Fermanagh | 3,131 |
| Galway | 15,690 |
| Kerry | 16,101 |
| Kildare | 5,055 |
| Kilkenny | 8,382 |
| Laois | 3,254 |
| Leitrim | 2,929 |
| Limerick | 10,994 |
| Longford | 3,609 |
| Louth | 3,980 |
| Mayo | 11,356 |
| Meath | 6,546 |
| Monaghan | 3,057 |
| Offaly | 6,327 |
| Roscommon | 7,241 |
| Sligo | 7,877 |
| Tipperary | 12,011 |
| Tyrone | 2,717 |
| Waterford | 6,511 |
| Westmeath | 6,399 |
| Wexford | 7,526 |
| Wicklow | 4,936 |
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