doon EYN-gus-ah
A dramatic Iron Age stone fort on the edge of a sea cliff on Inishmore, its name folk-connected to the god Aengus.
Dún Aonghasa sits on a sheer 100-metre sea cliff on Inishmore, the largest of the Aran Islands, ringed by massive dry-stone walls and a defensive field of jagged upright stones. Archaeologically it dates to the Bronze and Iron Ages, well before the manuscript sources that record the mythology were written down.
Its name — "Aonghas's fort" — is a later folk association with the god Aengus rather than an attested part of his own myths, one of many places across Ireland where a strikingly dramatic ancient site picked up a mythological name after the fact.