St Rule's Tower is a historic structure located in St Andrews, Scotland. It is part of the ruins of the ancient St Andrews Cathedral, which was once the largest church in Scotland. The tower stands at approximately 33 meters tall and dates back to the 12th century, serving as a prominent landmark in the area. Visitors can climb the tower's narrow staircase to enjoy panoramic views of St Andrews and the surrounding coastline. The tower is named after St Rule, a legendary figure associated with the early Christian history of the region, and it remains a popular attraction for tourists and history enthusiasts alike.