shinjuku at night
Here's a shot from Yuki, via Jean Snow, of Tokyo at night.
For me, when I was living in Tokyo, winter was my favorite time of year, the air was so crisp and dry and cool that it felt like little storms of sparks could erupt at any time.
A lot of people complain about the lack of heat in Tokyo apartments but it really didn't bother me so much, it was such a great feeling to eat lots of warm food and keep thick blankets around me, that kept me warm.