Pirates Harbour

Pirates Harbour is a city on Earth in the alternate timeline created by Minax in Ultima II. It is located in northern Russia of 2112 A.D. Aftermath, and the last city on Earth after the nuclear holocaust of a year prior. It is populated by die-hard communists who guard a military force, including several rocket ships, of which one has to be stolen to travel to Planet X.

When the Stranger returned the timeline to normal, Pirates Harbour vanished as well.

Trivia

 * It is really funny how much communist propaganda is put into this city; "da KGB," numerous "CCCP" things, and "Ministry of Propaganda," to count some. Especially ironic, since the USSR stopped existing in 1991 (not that anyone could have seen this coming in 1982).
 * Look at the walls in the water. "666," the infamous number of the Devil. During space travel, it also happens to be the in-game coordinates of Earth.