I want to go to Paris.
What are Nouns?
Paris fits in as a noun in English because it is a proper noun, referring to a specific place.
In this context, "Paris" is a city, and as a noun, it denotes a location that the speaker expresses a desire to visit. Nouns name people, places, things, or ideas, and "Paris" falls under the category of a proper noun as it identifies a particular city with a unique identity.
The use of "Paris" in the sentence provides clarity and specificity about the destination the speaker wants to go to.