Castle Miranda is otherwise (more properly?) known as Chateau Noisy. It’s a long way from here, in Belgium, but was designed by the English architect Edward Milner. It is, to vastly understate things, a beautiful Neo-Gothic building that has been terribly neglected. You can read all about it in an account on David Baker’s excellent site here. It’s also very popular with urbexers.
David’s a professional photographer, and has taken some beautiful images of the chateau- you can visit the gallery by clicking the image below:

The bad news is that the owners want to demolish it, despite many offers to purchase the site over the years. See Dave’s post here, and a petition site here (hint, use Google Translate if you can’t read French).