Beneath an ordinary-looking New York City synagogue lies a secret that has piqued the interest of law enforcement.

Nestled deep in Pennsylvania (United States), Centralia has become a ghost town. Since 1962, it has been the victim of an astonishing phenomenon, trapped by an underground fire. Centralia ...

After the Great Flood of 1862, Sacramento elevated its streets and buildings creating a unique underground world still ...

The United States satellite images displayed are infrared ... These meteorological satellites, however, see more than clouds and cloud systems. City lights, fires, effects of pollution, auroras ...

Mr. Duffy, the U.S. transportation secretary who has characterized the New York City subway as dirty and dangerous, rode a ...