After the nuclear war
Actually this is a fascinating photo essay of an abandoned city in the Soviet Union, left to gradually die off while the USSR collapsed.
Check out An Abandoned City
Here is a little photo-session of an abandoned city. When the Soviet Union collapsed, government didn’t have much funds to support some small cities around strategically import objects. People of these cities were left all by themselves. Nobody could support them because any communication with this places terminated after the army decided that they now don’t have money to support those objects.