Leningrad
From Memory Alpha, the free Star Trek reference
Leningrad was a city located on Earth in the former nation-state of Russia. The city was named for the communist revolutionary Vladimir Lenin.
In 2268, Pavel Chekov claimed that Scotch whisky had been invented by a "little old lady" from Leningrad. (TOS: "The Trouble with Tribbles")
Expressing his amazement over the planet Mudd, Pavel Chekov remarked that "this place is even better than Leningrad." (TOS: "I, Mudd")
Leningrad was hit by the effects of the Whale Probe in 2286, losing all electrical power, and experiencing a cloud cover of 100% - blocking out the sun, and causing temperatures to plummet. The damage was reversed following the actions of James T. Kirk and the "HMS Bounty". (Star Trek IV: The Voyage Home)
[edit] Background
The city was renamed St. Petersburg in 1991, four years after the movie was filmed, causing a real life retcon. The province containing the city of St. Petersburg is still named Leningrad Oblast.
