curiosity vs oddity

curiosity and oddity both are nouns.

Word	Noun	Adjective	Verb	Adverb
curiosity	Yes	No	No	No
oddity	Yes	No	No	No

As nouns, curiosity and oddity are synonyms defined as:

Other synonyms of curiosity include curio, oddment, peculiarity, rarity.

curiosity (noun)	oddity (noun)
something unusual -- perhaps worthy of collecting	something unusual -- perhaps worthy of collecting
a state in which you want to learn more about something	a strange attitude or habit
	eccentricity that is not easily explained