The Hook Lighthouse, located in County Wexford, Ireland, is one of the oldest lighthouses in the world and the second oldest still operating. Built around 800 years ago, this iconic structure marks the eastern entrance to Waterford Harbour. Originally constructed by Strongbow's son-in-law, William Marshall, the tower stands at 35 meters tall and boasts a rich history dating back to the 12th century. With its medieval architecture and fascinating past, the Hook Lighthouse is a must-visit destination for history buffs and lighthouse enthusiasts alike.