Tycho City
From Memory Alpha, the free Star Trek reference
Tycho City was located on Earth's moon, Luna.
By 2373, the city had self-contained atmosphere and artificial gravity, and was large enough to be seen from Earth in the daytime. Commander William T. Riker missed the familiar sight of the city, while looking at the Moon during his mission to the year 2063. (Star Trek: First Contact)
Dorian Collins and her family were from Tycho City. (DS9: "Valiant")
