Taking pictures in the dark makes you approach photography in a different way. It can be difficult to compose your shot because you can barely see what your shooting. Also, you almost always have to manually focus.
I find night photography to be very relaxing so far. Since exposures can last up to five minutes long (or more), I’m forced to slow down and pay more attention to my surroundings in a way that I never would otherwise.
Night Photography – My First Attempts, a set on Flickr.