Slightly OT here but I just wanted to share some pictures I never considered would be possible and would have easily thought to be manipulated.
Short version: City lights, road illumination, neon ad boards are mirrored as light pillars in flat ice particles suspended in static layer of frigid cold air spanning a couple of 100 meters of altitude above Oslo.
Learning something new about the atmosphere is really fun.
More pictures and full article: http://www.nrk.no/norge/se-de-iskalde-kunststykkene-1.12737221