The mystery of an 'underground city' beneath Egypt's pyramids has intensified after scientists revealed a new discovery below ...

"We're actually facing, in many parts of our country, nothing short of societal collapse." This was the dire warning from ...

These human-made landmarks around the world defy expectations of what man can create—and they sometimes seem to defy gravity ...

Here are five you should watch out for. U.S. homeowners' insurers have hiked premium rates by double digits over the past two ...