In 1934, Black cave guide sold Mammoth Cave hotel for just $3,000

Meet Kim Ji-on, a 12-year-old South Korean student who invented a life-saving device that helps peop…

In a remarkable feat of innovation, young inventor Kim Ji-on from South Korea has developed a groundbreaking fire-escape…

A California family bought a $1 historic house and moved it onto their burned property

Washington watershed sees chum salmon surge as river restoration nears completion