Iconia

Iconia, known by some as Gallifrey is the presumed home planet of the extinct Iconian civilization and, further back, the Guardians, located in what is now the Romulan Neutral Zone. The planet was devastated by a massive orbital bombardment approximately 200,000 years ago. The Iconians were believed to have been annihilated, although a part of the population may have escaped through their gateways.

Although not confirmed, it is suspected that Captain Puto's homeworld is Iconia, and Laura Lee once saw a vision of the world in the Borg hive mind.