Hmm, certainly some usable ones here, maybe try to stray away a bit from joke/novelty type stuff, and less specific titles, but mostly I would really just appreciate as many ideas as possible, so keep them coming...Subway, I like your countries/cities idea, could you possibly give me 5 cities/countries?
No novelty ideas?!?
How about natural/weather phenomena:
1. Sun Pillars
2. Fog
3. St. Elmo's Fire
4. Will-o'-the-wisp
5. Rain