Stretching over 745 miles (1,200 km) from north to south and spanning a surface area of approximately 143,200 square miles (371,000 square km), the Caspian Sea holds the title of the world's ...

The "weird" sandy protrusion emerged in the Caspian Sea after a mud volcano erupted ... largest number of documented mud volcanoes in the world, with over 300 of them located in the country.

The Caspian Sea is a geographical marvel and a critical resource for the five countries—Russia, Iran, Kazakhstan, Azerbaijan and Turkmenistan—that border it. But the future of the world’s ...

The island was spotted by satellite in the 143,200-square-mile Caspian Sea, between Europe and Asia, NASA says. NASA photo Like some sort of modern Atlantis, a “ghost” island has largely ...