'Spy plane' was monitoring Siberia under Open Skies treaty aimed at reducing tension after Cold War.
20 participants pedalled through icy mist and snow in Russia's permafrost capital.
In the rest of the world, people are sure about one thing: Siberia = cold.
Experts and fashion gurus say our women have lower bottoms than others - because of the cold.
Yakutia in a white blanket as temperatures dip to minus 6C as winter 'comes too soon'.
In a remote ice cave in Siberia, three legendary white-bearded figures hold an unexpected conclave.
Swimming 1km, in the middle of the winter, in Siberia, at water temperature of zero Celsius and air temperature below -30C.
One had no gloves as she clutched her favourite toy - and is badly frostbitten while both suffered from hypothermia, but survived.
From the Pacific in the east, to the Urals in the west, hardy Russians display their religious feelings - and bravery.
Thermometers go above zero in places where the winter should be 20 or 30 degrees colder.