"Set in Limerick's medieval quarter along the River Shannon, this 13th-century construction replaced an earlier Viking settlement and was erected in the early 1200s by order of King John. The visitor experience emphasizes interactive exhibits that bring history to life with 3D models and touch-screen technology, and the site also offers medieval courtyard games that were popular during the castle's heyday." - 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