In the Ben 10: Omniverse series, Undertown is a massive subterranean city located beneath Bellwood. Ben 10 Wiki .
The name appears across several distinct fantasy and science fiction works:
: It serves as a sanctuary and bustling metropolis for alien species living on Earth.
In the Ben 10: Omniverse series, Undertown is a massive subterranean city located beneath Bellwood. Ben 10 Wiki .
The name appears across several distinct fantasy and science fiction works:
: It serves as a sanctuary and bustling metropolis for alien species living on Earth.