Research shows Americans are increasingly fretting about disasters — and even the end times. Hiding in a cave might actually protect you.

For millennia, people have lived in cave dwellings around the world. Though few are still inhabited, most are open to tourists. Other areas have been preserved as heritage sites for visitors as well.

Americans have disasters on the brain — some real threats, and some imaginary. For instance, more than one in 10 believe we’ll eventually experience a zombie apocalypse, according to a 2025 survey of ...