Odd things that fascinate me, in no particular order:
The lives of Truckers. They are kind of like modern day Pony Express riders, only they have more horses under their asses. Whenever I pass a trucker, I can't help but wonder what his (or her!) little 'man/woman cave' in the back of their cab looks like. Is it tastefully decorated, with clean linens and grooming utensils carefully packed away in a bag to cart into a truck stop shower? Or, is it a stench filled festering pocket of dandruff and sloughed skin cells, used condoms (or, ew, 'used' tube socks), with linens that haven't been washed for 2 years? Or, worse yet, is there some poor soul chained up against their will just praying for some passing driver to somehow sense their turmoil and alert the authorities? These are just a few of the things I ponder when I see a trucker on the road.
I am also fascinated with Trailer Parks. They are such interesting snippets of Americana. Like the great philosopher Forrest Gump said - "Life is like a box of chocolates, you never know what you're going to get." Well, the same goes for Trailer Parks. You could be venturing into a neighborhood worthy of being the set for the Forth Sequel to "The Hills Have Eyes", or you could be venturing into a neighborhood full of Easter egg colored trailers, each with tidy little astroturf yards with friendly Garden Gnomes peering at you from every nook. Yes, you never know what you're going to get with Trailer Parks, and that's why they fascinate me.