Screaming through a Swedish window at night

A peculiar tradition in the Swedish town of Flogsta, the Flogsta Scream is a common occurrence which has endured for decades. Thought to be used as a stress-reliever by hard-working students at local Uppsala University, some suggest the scream started in remembrance of a murder victim in the 1970s. Here you can witness a campus full of students succumbing to its weird and potent spell.