"This well-preserved 12th-century stronghold on the banks of the River Boyne in County Meath is the largest Anglo-Norman fortification in Ireland, constructed in 1172 and taking 30 years to build. In its heyday a massive 20-sided tower was protected by a ditch, curtain wall, and moat. The nearby visitor center — located beside the castle — offers a collection of medieval armor, model buildings, and tickets for castle tours." - Patricia Doherty Patricia Doherty Patricia Doherty is a writer who specializes in covering destinations, resorts, and cruises for Travel + Leisure and other publications. Travel + Leisure Editorial Guidelines