Taken last weekend in the Schwandwald (Schwand Forest) near Rubigen, Canton of Bern, Switzerland.
The photo was not a hit and I played a bit around with Photoshop.
Watch it on black on a big screen for 30 seconds and you'll get definitely dizzy...
Canon EOS 60D
Tamron SP AF60mm F/2.0 Di II LD [IF] Macro 1:1
Exposure time: 1/80s
Focal length: 60mm
ISO Speed: 1600
Processed with PS CS5