Nox city
From The Stargate Omnipedia
Categories:
Nox city
A vast city most likely built by the Nox.
Although it floats within site of the Stargate, unwelcome visitors are unaware of its existence, as the Nox render it invisible with their abilities.
KEY EPISODE
The Nox - Anteaus reveals the city to SG-1 to show that the Nox are not as helpless as they appear to be.