There's not much left of the Cathedral at St Andrews, but the remaining towers stand out against the skyline.
The site is maintained by Historic Scotland, but it's also a working graveyard, and seemed to be a popular picnic spot for students. Which is quite an unusual combination, but it's a pretty, grassy site near the sea, so it sort of makes sense.
I would have loved to climb the tower, but it was locked up when we visited - I imagine the views are incredible. But we had fun admiring the impressive gravestones and monuments, strolling through the old cloisters, and trying to photograph buildings much too tall to easily fit in a frame. Not really a must-visit site in its own right, but since the cathedral is just along the coast from St Andrews Castle, it's worth popping in.