Rouketopolemos -- Xtreme Easter
Even if you don't celebrate Easter, you're at least familiar with it as the boring pseudo-Christmas that comes along in the first half of the year. You don't get any presents, but you have Easter egg hunts, which often go hand-in-hand with a church picnic, fair or some other kind of clean, constructive activity.
Like raining hellfire.
However, ask someone from the Greek town of Vrontados about Easter and you'll probably trigger a 'Nam flashback. This is all thanks to the Panagia Erithiani and Agios Markos churches and their annual tradition of Rouketopolemos, which translates directly to "Rocket War," which is exactly what it sounds like.
"Peace be with y -- EAT ROCKET!"
Rouketopolemos is just a giant unregulated rocket fight between the two aforementioned churches. At midnight before Easter Sunday, the congregations of Panagia Erithiani and Agios Markos go up to their respective bell towers, located on hilltops 400 meters apart. They prepare launching ramps full of homemade projectile explosives before unleashing the Kracken on their cross-town rivals.
"The Lord is my heat-seeking rocket. I shall not miss."
To win the game, you must hit the opposing church's bell more times than they hit yours, though honestly if you make it through the night with all 10 fingers intact, go ahead and declare yourself a winner. While shit does get pretty damn real on the ground, the real best view in the house is only for the ultra ballsy: right next to the fucking bell.