Arches National Park, Moab, Utah
The clouds were to the west and it looked like the sunset show was going to be flat. Most of the photographers around me packed up. Then low and behold, a minute before official sunset, the sun burst forth and the rocks glowed red.
HDR with 3 images using HDR Efex Pro, no other alterations beyond standard optimization
Nikon D800, Nikkor f3.5-5.6, 28-300mm