This post has not been vetted or endorsed by BuzzFeed's editorial staff. BuzzFeed Community is a place where anyone can create a post or quiz. Try making your own!
The Nightly Scream In Sweden
Every night at 22:00 (10pm) people of Uppsala in Sweden open their windows and scream for a few minutes. Apparently no one knows the origin, but if it works for them no harm.
Want to get your very own quizzes and posts featured on BuzzFeed’s homepage and app?
Become a Community Contributor.
Become a Community Contributor.