Level 4

Level 4 was one of the lowest levels on the planet Coruscant's subterranean underworld. The level was supposedly inaccessible, but entering it was possible. A lost museum was on or below the level, and Amilyn Holdo searched for it while on Coruscant with Leia Organa. They accessed the level by making their way through pipe work.

Text and facts from the “Level 4” article on Wookieepedia, licensed under CC BY-SA 3.0. Modified for this site.