Sleek, powerful, and ahead of its time—the XB-51 was poised to be a game-changing aircraft in the U.S. arsenal. But despite its advanced design and high performance, it never made it to the ...

The Monastery of Simonos Petra clings almost impossibly to a sheer cliff above the Aegean Sea in northern Greece.

A tsunami warning has been issued off the coast of Greece following an earthquake measuring 6.0 on the Richter scale.