Why the Victorian Mansion is a Horror Icon

Why the Victorian mansion is a horror icon is a screamer video made by American news and culture website, Vox.

For around 5 minutes, the video describes to the viewer what makes Victorian mansions frightening. But, as soon as the narrator says "There's something not quite right with this house" Pennywise from the IT Franchise appears along with a scream, ending the video.

Links
NOTE : The following video contains a screamer!
 * youtube.com/watch?v=2xvNhN1PsRw