Trees in Infrared
These photographs may look like scenes straight out of a Tim Burton film, but they're actually real trees photographed with infrared. A film or image sensor sensitive to infrared light is used, usually along with an "infrared filter", which lets infrared light through but blocks out all or most of the visible light spectrum. Tree leaves, grass and other foliage have a strong reflecting effect like how snow reflects sunlight, giving them an ethereal glow, known as the "Wood Effect", named after infrared photographer pioneer Robert W. Wood.
Eerie and beautiful, we can stare at these for hours. Enjoy!
Images taken from Treehugger. Read more on Infrared Photography at Wikipedia.