The Greeks and Romans
I find it fascinating to compare the Greeks and Romans. Their status as the two great political systems of antiquity would suggest more similarities than differences between them, yet they are polar opposites.
If you make a list of adjectives to describe the Greeks, you'll find their antonyms on a list describing the Romans.
Greeks – theoretical, artistic, cultured, philosophical, egalitarian
Romans – practical, imitative, hedonistic, class-oriented.