Photographer Yann Phillipe made this series of landscapes which are rendered using the infrared light spectrum, rather than visible light. The effect is dreamy and almost science-fiction-ey; forests become bright red while blues seem to get cooler.
I'm not sure if these images were shot on actual infrared film, or if he was using a filter to simulate the effect. As I understand, infrared film stock is really hard to find these days (which is a shame), so my guess is that these images are digital. Either way, they're gorgeous.
Hat tip to Moss and Fog and Kottke.org.