Underground shelters are now attracting wealthy elites, tech billionaires, and those looking to ensure their survival during the ultimate catastrophe. From high-end bunkers to sprawling fortified ...

A thousand feet beneath the desert, the United States conducts experiments to verify that its weapons work. But some fear a ...

According to The Times, the structures have "a bullet-resistant and fire-retardant steel core" in the form of "18in thick ...

Last player to leave the giant underground hole wins iPhone 11 Pro! There will also be punishments and prizes that will ...

From a passageway made by giant sloths to a slinky tunnel bridge and an 'entrance to hell' - there are some extraordinary ...

They feature the topic of isolation from the outside world due to natural disasters, wars or other extreme conditions | ...