This was taken in Quebec City near the old Quebec. The walls you see on the right side are from the Citadel
54 images in 3 rows of 4-8-4 images + 2 nadir * 3 exposures each.
Shot at 10mm, ISO200 f11 and 1, 1/4 and 1/15 seconds.
Generated 3 equirectangular panorama (one per exposure) with hugin and post process with photomatix.
Worked on it a little to remove the purple fringing (that photomatix enhanced!)