Roman building vs antiquity

Roman building and antiquity both are nouns.

Word	Noun	Adjective	Verb	Adverb
Roman building	Yes	No	No	No
antiquity	Yes	No	No	No

As nouns, antiquity is a hypernym of Roman building; that is, antiquity is a word with a broader meaning than Roman building:

Other hypernyms of Roman building include building, edifice.

Roman building (noun)	antiquity (noun)
a building constructed by the ancient Romans	an artifact surviving from the past
	extreme oldness
	the historic period preceding the Middle Ages in Europe