A movie set for a historical drama couldn’t look more spectacular than Dromoland Castle: towers topped with battlements, purple walls, richly patterned fabrics, massive antique wooden furniture, and open fireplaces. Located in County Clare, Dromoland Castle was built in the 16th century for the O’Brien clan, direct descendants of the last High King of Ireland. Today, the stunning estate is a romantic castle hotel surrounded by a 410-acre park.