Europe-Places.com has listed approx 129 Historical landmarks in Co. Donegal. Some of the Top rated Historical landmarks in Co. Donegal are- Doon Fort, Celtic Cross of trees by Liam Emery, Celtic Cross of trees by Liam Emery, Gartan Graveyard, Gartan Graveyard, Celtic Cross of trees by Liam Emery, Ray Church, Napoleonic Signal Tower, WARREN POINT LIGHTHOUSE & WARREN POINT LIGHTHOUSE.