Whether an entire town can’t stop dancing or people suddenly start worrying about minor marks on their windshields, these seemingly unbelievable events have had some surprising (and sometimes devastating) effects.

From what makes red velvet cake red (and velvet, for that matter) to its highly dubious origin story, here’s what you need to know about this delicious dessert.

From a record-breaking mountain climber to a British adventurer who may have died searching for a city that doesn’t exist and beyond, these explorers have fates that are shrouded in mystery.