Its highlights include the bridge, the heritage railway, the canal, Plas Newydd — the home of the Ladies of Llangollen — and the site of the Llangollen International Musical Eisteddfod.
Ymhlith ei rhinweddau mae’r bont, y rheilffordd dreftadaeth, y gamlas, Plas Newydd — cartref Merched Llangollen — a safle Eisteddfod Gerddorol Ryngwladol Llangollen.