At Cragside, a 150-year-old, 45-metre-high tree fell and threatened to block a stream, while Wallington lost 200-year-old beeches that were part of the original garden designs. The National Trust ...

Suddenly things become quite a bit more impressive, and it is all thanks to a British electrical hacker named William Armstrong who built a house known as Cragside. Even if you’ve never been to ...