Fire Vortex is a live sculpture of fire from the mind of Nate Smith, displayed at The Crucible's Fire Arts Festival in Oakland. This was one of the most incredible sights I've ever seen. Witnessing the taming of the flame and constant evolution of shape was beautiful.
It was so hot I was worried that my new lens would melt somehow, but luckily all is well. For more info, check out Nate's site: Fire-Arts