Whats happens to structures and landscapes when a thriving population abandons them? What is a catastrophe or fear of impending doom forces people out of perfectly fine homes and towns? Ghost towns!
The US is teeming with ghost towns whcih were once communities of hard working people usually living off the riches of the local envonronmnt until its resources ran out.
Be careful when photographing abandoned or sparsely populated areas as unexpected encounters with people, animals or sharp edges should be dealt with carefully to ensure safety of your pictures and maybe yourself.