Undertown -

In the Ben 10: Omniverse series, Undertown is a massive subterranean city located beneath Bellwood. Ben 10 Wiki .

: It serves as a sanctuary and bustling metropolis for alien species living on Earth. undertown

: These underground spaces were part of the city's original Victorian-era street level before being built over to raise the roads above the tide line. In the Ben 10: Omniverse series, Undertown is

: Known for its diverse alien population, unique architecture, and massive market stalls. In the Ben 10: Omniverse series

: While mostly peaceful, it operates with a "don't ask, don't tell" vibe regarding its existence to the human world above. 📚 Literature & Graphic Novels