This map layer shows only historic sites and monuments.  Unfortunately it shows only those in Northern Ireland, but just imagine the number of sites there must be across the whole island.   As you can see from the map above, we aren't short of archaeological sites in this part of the world.  There are the three spectacular tombs in the Boyne valley, Newgrange, Knowth and Dowth, ( Brú na Bóinne Visitor Centre: Newgrange, Knowth and Dowth | Heritage Ireland ).  The huge Giants Ring in Belfast, ( Giant's Ring | Department for Communities (communities-ni.gov.uk) ).  Maeve's grave in Co. Sligo, ( Queen Maeve Trail – Knocknarea – Sligo Walks .  There are thousands of others too including, as below, the stone circle at Ballynoe, about 5 miles outside Downpatrick ( Ballynoe ‘Stone Circle’ | Department for Communities (communities-ni.gov.uk) ). It dates from the Neolithic to the bronze age, so from about 4000 years ago, and has links to the Boyne Valley monumen...