Caernarfon Castle is a historic castle located in the town of Caernarfon, North Wales. The castle was built in the late 13th century by King Edward I of England as part of his efforts to conquer and pacify Wales.

The castle is notable for its distinctive polygonal towers, which set it apart from other castles of the time, and for its impressive walls and battlements. It was also the site of several key events in Welsh history, including the investiture of Prince Charles as the Prince of Wales in 1969.

Today, Caernarfon Castle is one of the most popular tourist attractions in Wales and is considered to be one of the finest examples of medieval military architecture in Britain. Visitors to the castle can explore the castle's extensive grounds, including the castle's walls, towers, and gatehouses. They can also visit the castle's museum, which showcases the history of the castle and its role in Welsh history.

In addition to its rich history, Caernarfon Castle is also known for its beautiful surroundings. The castle is situated on the banks of the River Seiont, and visitors can enjoy stunning views of the river, the mountains, and the town of Caernarfon.