Vast stretches of Russian coast have been tarred by heavy fuel oil from two freighters that foundered in a storm.

creating the Black Sea. While studying these environmental changes, the MAP team’s remotely operated vehicles (ROVs) stumbled on the first of the wrecks that lay untouched on the bottom.

And yet few international travelers make the journey to, much less know anything about, Turkey’s Black Sea region, or Karadeniz. Editor’s Note — This CNN Travel series is, or was ...

It occupied a strategic position on the Dardanelles, a narrow water channel that connects the Aegean Sea to the Black Sea ... On the interactive map on the home page, the levels are represented ...