Gorilla City

On Earth-2, a refuge for gorilla's was created for those who were subjected to lab experiments.

History
Some time on Earth-2, a refuge was created for gorillas who underwent lab experiments to freely roam about.

Grodd's arrival
Grodd was brought to the refuge through a breech which Team Flash opened in Earth-2.

Behind the scenes

 * The refuge is reminiscent to Gorilla City, a city inhabited by intelligent gorillas in the DC Comics.