A friend and I visited Wales during college and ran across Tintern Abbey quite by accident. We rented a car in London, and embarked on a drive from there to Oxford. We found a place to stay somewhere between Oxford and Tintern (not sure exactly where). Early the next day we got back on the road, and suddenly we beheld emerging out of the gloomy mist a majestic but decrepit building obviously of centuries-old origin. We inquired and learned its name: Tintern Abbey. The pictures at the bottom of the medievalheritage.eu link are what I remember seeing.

Also wonderful Wordsworth poem , perhaps his best.

https://www.poetryfoundation.org/poems/45527/lines-composed-...