Debris.

What a world would it be, where everything is in ruins. Amidst the rubble, civil wars breaking out all around the world, or at least on whatever is left of it. Resources scarce. Every fifth human turned into a cannibal, giving in to the animal inside them. Flora and fauna cease to exist. The rich and poor, without mediocrity to balance them out. Barter system has found it's way in a world where only money as an exchange was accepted. No roads, no shelter, only debris remains. Day turns to night by 1900 hours, leaving only darkness behind. Electricity prevails no more. Only violence does.