These are some of my favorite ones:
Pittsburgh always seems prettier at night. I think it's because the lack of light covers up its flaws.
Since all of these are landscape, there's no need to use the night settings which usually involve flash (and if you really wanna use flash to lighten things up, you would need an awfully big one).
It's hard to get this right. Night shots turn out much better with tripods, but in my case I never bring one around, so you can just use a hand rail or hope your hands are very steady.