While the demise of coal has been great for US emissions, the real driver is economics. Coal used to be the cheapest form of ...

CENTRAL CITY, Colo. (KDVR) — A group of college archaeological students has uncovered a bit of the past, just outside Central City. For the past three weeks, the archaeology “field school students” ...

Deep in the hills of Georgia, we explored a historic old gold mine packed with steep, winding tunnels. In this video, we trace the paths of early prospectors, navigate sharp drops and narrow passages, ...