St Andrews Castle is a historic fortress located in St Andrews, Scotland. Built in the late 13th century, it served as the residence of the bishops of St Andrews and played a significant role in the religious and political history of Scotland. The castle features impressive ruins, including a massive round tower and a unique bottle dungeon. The castle is situated on a cliff overlooking the North Sea, providing stunning views of the coastline. Today, it is a popular tourist attraction, allowing visitors to explore its rich history and learn about the events that shaped the region.