A drone flight and a lingering dry spell have exposed a previously unknown monument in Ireland's Boyne Valley ... and suddenly the outline is obvious. The photos are intriguing, as well as ...

Ireland is an island on the western fringe of Europe between latitude 51 1/2 and 55 1/2 degrees north, and longitude 5 1/2 to 10 1/2 degrees west. Its greatest length, from Malin Head in the north ...