Siberia was a location in Russia.
In 1903, the First Doctor, Ian Chesterton, Barbara Wright and Susan Foreman visited Zarechny in Siberia, where they met Grigori Rasputin. (AUDIO: The Wanderer)
In 1908, the Dalek saucer Survey Ship Delta crashed on the wastelands of Siberia and exploded, leaving no survivors. (COMIC: The Dalek Project)
In 1927, a Vondraxian orb was found in Siberia. One person was exposed to the tachyon radiation. The KVI tried to extract the tachyons by killing him, but they dissipated after death. (PROSE: Trace Memory)
During World War II, the curator of the Palace Museum in Leningrad fled to Siberia with the collection of treasures after the invading German Army surrounded the city. (PROSE: Cabinets of Curiosities)