For our 7th anniversary last year, my wife and I went to Montreal for the weekend. Totally unplanned, we found that Nuit Blanche was on and decided to take a look around. My favourite was this guy (Phil Allard) who was making up a giant peace sign with tiny Chinese characters and some unidentified squiggles. Very cool! It also made for some great shots with the Nikon D700 and a Nikon 50mm f1.4 AF lens.
This wide angle shot was taken with a Tokina 17mm f3.5 AF prime. This lens is hard to find, but is actually pretty good. Size wise its half way between the rather large Sigma wides (12-24mm and 20mm f1.8) and the dwarfish Nikon 20mm f4.