These beautiful illustrations of a post apocalyptic Paris are from the French comic book series Les Eaux de Mortelune by Philippe Adamov. I don't think that there is an English edition.
Devil's Playground (2010) is a post apocalyptic movie were the world is overrun by zombies. A hardened mercenary is chasing the one person who can provide a cure. Sure not a great movie but because it's British the scenery is London.
I've seen things you people wouldn't believe.
Attack ships on fire off the shoulder of Orion.
I watched C-beams glitter in the dark near the Tannhauser gate.
All those moments will be lost in time, like tears in rain.