Returning from a photosafari trip to the Grand Canyon, our helicopter landed to to refuel at a depot in the middle of the desert. Someone turned to look to the east, and with a shout of "The Light!", nine helicopters-worth of photographers turned and started shooting.
The horizon was lit in yellow, with a range of mountains rising over the dark twilight scrub, reflecting the setting sun and shining against the pearl of the evening sky.

See the full size image
here. It's a 4MB download...
I've used the latest version of ArcSoft's Panorama Maker software (which they demonstrated at PMA to considerable acclaim) to stitch together a panorama from a set of images of the mountains. It uses a graph cut algorithm, so the stitching is much smoother than with earlier panorama tools.