Caernarfon Castle is a historic fortress located in Caernarfon, Wales. Built by King Edward I in the late 13th century, it was part of his campaign to conquer Wales. The castle is known for its impressive walls and towers, which were designed to symbolize the power of the English monarchy over the Welsh. The castle is a UNESCO World Heritage Site and attracts many visitors each year. Its unique architecture features polygonal towers and a large gatehouse, making it one of the most iconic castles in Britain. Today, it serves as a popular tourist destination, offering insights into medieval history.