"This well-preserved Anglo-Norman castle is located in County Meath on the banks of the River Boyne. Built in 1172, the castle is the largest Anglo-Norman fortification in Ireland, and it took 30 years to build. In its heyday, the massive 20-sided tower was protected by a ditch, curtain wall, and moat. The town of Trim is home to many medieval buildings, and the visitor center, located beside Trim Castle, offers a collection of medieval armor, model buildings, and tickets for Trim Castle tours." - Travel + Leisure Editors