For most of my life, I have most enjoyed the pre-dawn hours, when the rest of the world (or at least that part living in my own time zone) is sanely asleep. When feeling particularly energetic, creative, and brave, I take my camera and go out for walks -- often in neighborhoods where I'm not sure I would feel safe in the daylight. Most of the following images were taken in Philadelphia, and in areas along the Delaware. One was taken while visiting my son in San Francisco.