Moscow

Moscow was a city in Russia, a former human nation of Earth. It was the capital city for the various political powers that ruled Russia.

The Eighth Doctor visited Moscow in 1951. (EDA: Endgame)

The Fifth Doctor visited Moscow some time in the near future. (BFA: Singularity)

Moscow was the first city to become aware of a supply shortage when the T-Mats stopped functioning. (DW: The Seeds of Death)

The Eighth Doctor visited Moscow in 1812 and 2024. (EDA: Emotional Chemistry)

The Eighth Doctor met a girl, Dusha, living in Moscow during Napoleon's advance on the city, whom he later found was the emotional half of a Magellan who had been divided and exiled from the future to two different time zones. (EDA: Emotional Chemistry).

In 1907 or 1908, three women were murdered in Moscow in a similar manner to the deaths recorded previously in St. Petersburg and soon to be repeated in London by Charrl invaders. (NA: Birthright)

Behind the scenes

 * According to The Brilliant Book 2011, a non-canonical REF book; by the 33rd century, Moscow had a namesake in the shape of the colony world New Moscow.