BBC History Magazine in association with Lonely Planet published in February 2013 a list of the Top 21 History Destinations in the World and The Boyne Valley was one of them!!!! Other destinations listed include Machu Pichu, Istanbul, Angkor Wat and New Orleans! How great is that!
Here is The  Boyne Valley Driving Route Map with all the main sites shown.
Map of Heritage Sites in the Boyne Valley

Private Day Tour

Tour the Boyne Valley, an area rich in heritage and history. Places to visit include Brú na Bóinne (Newgrange & Knowth), Hill of Slane, Hill of Tara, Monasterboice, Old Mellifont Abbey, Bective Abbey, Trim Castle, Loughcrew, Fourknocks, Kells, St Ciarán’s Holy Well and much more.