Create a realistic, science-fiction themed image representing the end of the world. Imagine a scene of derelict buildings, abandoned cars, and empty streets. Overhead, the sky might be a mottled gray, foreboding and heavy with angst. Perhaps there are stray robots or drone-like machines roaming among the ruins of what was once a bustling city. The world has a distinctly post-apocalyptic flair, and the air bristles with the electric charge of a disappeared civilization. This image should evoke the eerie loneliness of an intelligent life extinguished, and the stark, forbidding beauty of a world returned to itself.