Concrete, steel, flesh, bone.

It is constructed of reinforced concrete. Steel door, no windows.

It is constructed of reinforced concrete. Steel door, no windows.

Y'all talking about steel and concrete, steel and concrete.

Steel, concrete, anything.

-Why the mall?. -Concrete walls, steel doors.

The concrete and steel wasn't even mentioned.

The concrete and steel wasn't even mentioned.

The modern city - a seemingly sterile world of concrete, steel and glass.

Capable of disintegrating anything in their path. Concrete, steel, flesh, bone.