Metellos was an urbanized planet located in the Core. Known as “the Coruscant that wasn’t,” Metellos a center of industry and commerce, and was overpopulated and polluted. The cities were composed of large blocks that rose kilometers into the sky, with some cities floating above the surface. The Jedi often used Metellos as a starting point for their pilgrimages to Ilum.
Source: Coruscant and the Core Worlds (2003)
Read more on Wookieepedia.







