What are examples of american ? (help with homework!)?

I know language, music, food, music, housing/shelter... I know there are lots more, any suggestions? I have a collage due tomorrow, and I have to print everything off my computer, because my mom threw out her magazines the other day. If you have any pictures too, that would be helpful. I was thinking about putting a map of the US, is that a good idea? Any info or source would help! I already have NASCAR, George Washington, technology, pets, currency, schooling, food, the lincoln monument, and entertainment (television). Should I put some holidays down too, like christmas and that sort of stuff?