St Andrews Cathedral was once the largest church in Scotland and the destination for the country's greatest medieval pilgrimage route. It is now a roofless ruin, but a magnificent one, two end walls still standing, fragments of the nave arcade, and the priory complex alongside, all at the edge of the cliff above the sea. The position is extraordinary regardless of the weather.
The graveyard within the cathedral precinct contains some of the finest 18th-century carved gravestones in Scotland. Entry to the grounds is free; the small museum and St Rule's Tower carry a charge. Climb the tower for the best view of the town and the West Sands beyond.