It's one of the campanulas. There are scores of different varieties. Someone may be able to ID it for you, but it could be tricky as there are so many.
It's a place where beautiful isn't enough of a word....
I live in west central Scotland - not where that photo is...
Some kind of campanula, possibly persicifolia but mine have more "open" flowers than that. If it helps with ID, the white ones are a very bright white (they make other white flowers nearby look a bit dingy by comparison)
Doncaster, South Yorkshire. Soil type: sandy, well-drained
It’s a Campanula. Possibly Campanula carpatica. They self seed quite a bit. I planted some in one border years ago and now they pop up in every bed. They are lovely aren’t they 😊
“I am not lost, for I know where I am. But however, where I am may be lost.” Winnie the Pooh
Some kind of campanula, possibly persicifolia but mine have more "open" flowers than that. If it helps with ID, the white ones are a very bright white (they make other white flowers nearby look a bit dingy by comparison)
Searching around it looks like "latifolia", but it's described as growing to 1.2m, whereas the ones I've seen are around half that height. The white ones I've seen are definitely stunning and noticeable!
Hi, I have this lovely weed in my garden, and I’ve also seen in in the local area in a white colour. Can anyone help me to identify it? 
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Someone may be able to ID it for you, but it could be tricky as there are so many.
I live in west central Scotland - not where that photo is...
The white ones I've seen are definitely stunning and noticeable!
The whites are very useful in shady spots too
I live in west central Scotland - not where that photo is...