https://theweek.com/articles/469377/6-crazy-ways-people-around-world-are-prepping-doomsday

https://www.wired.com/story/prepare-for-doomsday/

https://www.vice.com/en/article/wnkx5q/the-survivalist-economy-are-people-gearing-up-for-the-end-of-the-world

https://www.livescience.com/14236-doomsday-survival-gear-supply-list.html

https://www.thetravel.com/doomsday-bunkers-around-the-world/

https://www.loveproperty.com/gallerylist/96173/doomsday-refuge-inside-the-worlds-largest-prepper-community

https://www.newyorker.com/magazine/2017/01/30/doomsday-prep-for-the-super-rich

https://www.re-thinkingthefuture.com/designing-for-typologies/a3311-11-luxury-doomsday-bunkers-around-the-world/