See a picture here or here.

William Wordsworth writes about Tintern Abbey in his poem " A Few Lines Written Above Tintern Abbey" where he sits and wishes to be even more immersed in nature and longs for a life outside the city and misses when he "bounded over the mountains" (Wordsworth). It was made famous by this poem.

Tintern Abbey is a ruin of a church that was rebuilt and made bigger between 1220 and 1287 (brittanica). It is on the river Wye and has gorgeous natural scenery. It was bought as a monument of national importance in 1901 (Wikipedia). It has also been painted by many artists because of its natural beauty (like this painting in 1812) (Wikipedia).

Sources:

https://www.britannica.com/topic/Tintern-Abbey

https://en.wikipedia.org/wiki/Tintern_Abbey