America has a shitton of references to old gods and deities, pagan traditions, and other crap of that type. We're a country of symbolism.
Such as the Statue of Liberty, aka Libertas. The wide-spread use of the "fish symbol" - though it's now used in relation to Christianity. But it's literally everywhere once you start looking. A huge number of newspapers have an astrology section. Off the top of my head, I think the only people who think about Astrology symbols and blood types more than Americans are the Japanese and possibly a portion of China. We basically worship our flag. Once you're outside of the cities, a majority of households have several flags. You can't go too far before you see another flag.
I'm guessing a lot of cultures do this, but lot of people in America keep items they consider important or "lucky" on their person at all times, because they feel "naked" without them. Personally, I keep a $2 bill (I think everyone should have one, honestly. Because they're eff'in cool), a gold dollar, a cross-coin, and a weird necklace thing I found when I was like 7 in my wallet at all times. I don't even think about, they've just accumulated over the years. Sometimes I just come across someone that I feel that I need to keep.
My mom will not cross a black cats path. She will literally do a U-turn in a busy street if she has to. 13 is considered the most unlucky of numbers, and many buildings will not use the number on their floors (tho not some of the newer ones, I think). They just skip the number.
Just about every old or important building has a "guardian" of some type hidden in it (or often in plain view). Be it a statue of some humanoid or animals, or a painting, or whatnot. An example being Patience and Fortitude in front of the New York public Library. People don't state that they think about it that way, but I'm guessing many of them nod or say a greeting in their head while passing such figures. "Hello there, old Patience. Since you're still perched there, I've got to assume that things haven't gone to shit."
It goes on and on.