Antaresia is a project which explores image generation via genetic algorithm and crowd-sourced evaluation. Images constitute organisms in a population competing for resources -- visitor votes. When it's time to replace the population with a new generation, the votes are used to determine which images to use as parents in the creation of new images. Highly voted-for images will survive into the next generation untouched.
You can view the currently-evolving population here and vote to endorse images you like.
Particularly appealing images from past generations and populations are re-rendered in higher-resolution and blogged here.
A small sample of those past images is shown below.
Project Antaresia by Jesse Thomason is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.