More craters expected to form due to such eruptions as permafrost melts - and they ARE caused by global warming releasing methane gas.
Culture on edge of Siberia was 'as advanced' as in Middle East, then considered to be the apex of development.
Secret KGB documents and a book by ex-FSB colonel kickstart 100 year old search for missing Romanov treasures and valuables.
Local reindeer herder witnessed the tundra explosion that led to birth of new hole in river.
New cities and industries could be created from construction of high-speed railway and motorway routes spanning whole of country.
Stunning statue with 'encrypted codes' is 11,000 years old, even more ancient than previously believed.
An extraordinary adventure, blessed by the Queen of England and the Tsarina of Russia.