place of worship vs house of worship

place of worship and house of worship both are nouns.

Word	Noun	Adjective	Verb	Adverb
place of worship	Yes	No	No	No
house of worship	Yes	No	No	No

As nouns, place of worship and house of worship are synonyms defined as:

place of worship and house of worship: any building where congregations gather for prayer

Other synonyms of place of worship include house of God, house of prayer.

place of worship (noun)	house of worship (noun)
any building where congregations gather for prayer	any building where congregations gather for prayer