Unexplained Phenomena in Russia

A Russian shortwave radio station broadcasts mysterious buzzing sounds and coded messages 24/7 since the 1970s. Military installations, spy communications, or something else entirely?

Nine experienced hikers died mysteriously in the Ural Mountains under circumstances that defy conventional explanation. Soviet authorities classified the area for three years.

On June 30, 1908, an explosion 1,000 times more powerful than the Hiroshima bomb detonated over remote Siberia, flattening 80 million trees across 830 square miles. No crater. No debris. After 117 years, the cause remains hotly debated.