Dunkeld Cathedral is a Church of Scotland place of worship which stands on the north bank of the River Tay in Dunkeld, Perth and Kinross, Scotland. Built in square-stone style of predominantly grey sandstone, the cathedral proper was begun in 1260 and completed in 1501. It stands on the site of the former Culdee Monastery of Dunkeld, stones from which can be seen as an irregular reddish streak in the eastern gable.
It is not formally a 'cathedral', as the Church of Scotland nowadays has neither cathedrals nor bishops, but it is one of a number of similar former cathedrals which has continued to carry the name.
Wikipedia https://en.wikipedia.org/wiki/Dunkeld_Cathedral
Coordinates 56°33'54.456" N -3°35'23.438" E