There's something nice about cities at night. Especially old cities. The muted light camouflages all the new -the gum ground into the cobblestones, the graffiti, the post boxes and cars. There are fewer people out, and almost no tourists, so it's peaceful. The streetlights have a way of bringing out the best in everything too. The stone buildings glow a little more, the golden angels, chariots, princes, and crosses that crown the buildings shine. Even people look better -the darkness softens features and makes people seem less angular and strange.
My nighttime run went something like this (with bad iPhone pictures, aren't you lucky!):