Our recent holiday was in Pembrokeshire, but on the way there we stopped at one of my favourite places, Llanthony Priory (Welsh: Priordy Llanddewi Nant Hodni), in the Black Mountains, between Hay-on-Wye and Abergavenny.
It was a day with really low cloud, so much so that we had to drive very carefully through the clouds, up the single-track road to the priory, where sight was often no more than a few metres ahead. So this is the priory on a darker gray day, which I think gives you some idea what it would have been like when it was first built in the early 12th century.
Kevin here gives you some sense of the scale of the priory
The building on the left is now a hotel, and has a bar in the monks old cellar.