Machinery by Masato Ohta
This looks like an illustration, but it’s a photo, or rather a series of photos, put together using a technique called High Dynamic Range (HDR). HDR photos merge several shots at different exposures to create images with highly saturated colours.
There’s a great roundup on the Pink Tentacle blog that highlights some of the best photos from the Japan HDR Flickr Pool.
This photo is available under a Creative Commons Attribution 2.0 Generic license.