360° Geothermal Sulphur Point
Camerons Laughing Gas Pool, The larger of the boiling mud pools shown, on the sulphur flats behind the Energy Events Centre in Rotorua, New Zealand.
Two rows of 18 HDR images, each 20° apart. 36x HDR photos, each a composition of three photos (one under exposed, one correctly exposed and one over exposed). 108 photos in total!
Given that it has a 130° vertical field of view, it looks a bit more natural in Google Views, as below.