People have been worried about the planet's demise for centuries, but the tools for keeping ourselves safe are more advanced than ever.
In recent years, companies like Survival Condo Project have built luxury bunkers to house the superrich during a global disaster. (They can also live there now.) These underground dwellings are designed to make a catastrophe a little more bearable — some have movie theaters, swimming pools, and rock walls. Other similar companies, like the The Vivos Group, offer amenities like security cameras to protect residents from outside threats.
Any doomsday shelter, no matter how opulent, usually includes a few key features, like blast-proof doors, an array of freeze-dried food, and medical supplies.
Here's what these modern, high-end doomsday shelters look like.