World's Wildest Horse Race (PALIO DI SIENA)
The Palio Di Siena horse race has been going down in the town square of Siena Italy every year since at least the 1600s and the fanfare around it is second to none. I was lucky enough to experience this medieval tradition first hand and while it wasn't the most comfortable experience, it was worth it.
If you love insane Italian traditions I recommend checking out my Calcio Storico vid if you haven't already.