Name ANYWHERE on Earth that hasn't had a single natural disaster:

Write down the name of a Place and put it under this card. This is the secret location of the Holy Grail.
You may not change it, If the Grail's site is destroyed or Devastated by an attack, reveal the note. The attack becomes an automatic failure. The Grail continues to protect that Place.
If the Grail's site is captured, the Grail vanishes . . . discard this card.

Las Vegas

Nope.

Everywhere has been affected by natural disasters, and will be affected again and again. Hell, every few million years you have a big ass meteor that comes along and natural-disasters everything all at once!

So there's certainly not any place on the surface of the earth. Maybe at the very center of the earth there is a very stable chunk of iron that doesn't get broken up by plate movements or anything else, but that's probably as close as you'll get.

Antarctica

I live in Las Vegas. The whole city is one giant, self-sustaining natural disaster.

Newtown Connecticut

Name anywhere on earth that has never not had a natural disaster.

Singapore. True Story.

underneath Russ's red hat

Do you think the Mongols raids into Palestine somehow managed to obtain the Holy Grail? (1260s-1300s)

Mind you I'm just going off what is written on the illuminati card.

Also Poland, Estonia and United Arab Emirates.