Ireland, County Cork, Drombeg, Drombeg Stone Circle.

Ireland, County Louth, Carlingford Peninsula, Proleek Dolmen.

Ireland, County Sligo, Deerpark Court Tomb.

Ireland, County Sligo, Creevykeel Court Tomb looking north.

Ireland, County Sligo, Creevykeel Court Tomb looking south.

Ireland, County Sligo, Ben Bulben mountain seen from the summit of Maeve's Cairn on Knocknarea mountain with sea fog rolling in.

Ireland, County Longford, Aughnacliffe Dolmen.

Ireland, County Longford, Aughnacliffe Dolmen.

Ireland, County Longford, Aughnacliffe Dolmen.

France, Gard, Nimes, Maison Carrée, Square House, a small Roman temple dedicated to sons of Agrippa. Built c. 19 BC.

France, Gard, Nimes, Maison Carrée, Square House, a small Roman temple dedicated to sons of Agrippa. Built c. 19 BC.

Ireland, Meath, Newgrange, Entrance passge and light channel on the historical burial site dating from 3200 BC.