St Andrews Castle (HS)

For centuries, the residence of Scotland's most powerful churchmen. Some of its remarkable secrets are hewn into the rock beneath its battlements. You can explore a unique underground mine and countermine, dug during the brutal siege of 1546-7. You can also gaze into the gloomy bottle dungeon in which prisoners were confined.The castle stands on a headland looking out into the North Sea. A home to bishops, archbishops and a cardinal, it was in the thick of the struggle for hearts and minds during the Protestant Reformation.