Coruscant

Generally considered to be the captial of the galaxy, Coruscant is a planet wide metropolis that covers the entire planet and rises up several thousand layers. A beacon of trade, politics and other such things. The bright and high rising space scrapers hide the underbelly of the city, a wave of crime and scum that lives in the lower levels. There is little you cannot find or do on Coruscant, provided you know where to look and have the credits.
(This is the home of the Forgotten Cantina)