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| Z'onn Z'orr | |
| Continuity: | DC Universe |
| Category: | Headquarters |
| Planet: | Earth |
| Continent: | Antarctica |
| Residents: | J'onn J'onzz |
| 1st appearance: | JLA #1 |
Z'onn Z'orr is a fictional alien city featured in comic books published by DC Comics. It first appeared in JLA #1 in January, 1997. The city was created by the White Martians and erected underneath the ice shelfs of Antarctica thousands of years ago. In the modern era, it rose to the surface, where it was the temporary headquarters of the Hyperclan. After the Hyperclan were defeated by the Justice League of America, the Martian Manhunter took up residence here and used it as his own personal Fortress of Solitude.