The house to which Toth led them was in the very center of this strange subterranean city.

It was replaced by a scene in a great subterranean city.

They built subterranean cities, of which only ruins remain in the modern age.

The subterranean city was far bigger than he had suspected, and far brighter.

Under bustling sidewalks is a subterranean city with its own classrooms, movie theater and restaurants.

We had to move beneath the surface to subterranean cities.

An alarm went off, but it only added to the surreal atmosphere in this part of the subterranean city.

To me, it's like a subterranean city down here.

We have to reach the subterranean city before they do.

Did the Klingons break the roof of the subterranean city?