1. Commas:
* In a series: Use commas to separate multiple places in a list.
* After introductory phrases: Use a comma after a phrase like "from" or "to" that introduces a place.
Examples:
* We visited New York City, Los Angeles, and San Francisco.
* From Denver, Colorado, we drove to Salt Lake City, Utah.
2. Periods:
* At the end of a sentence: Use a period after a place name if it's at the end of a sentence.
Example:
* We are traveling to Paris.
3. Apostrophes:
* For contractions: Use an apostrophe in contractions that include a place name.
Example:
* I'm going to New York's famous museums.
4. No punctuation needed:
* Place names as part of a larger phrase: No punctuation is needed when a place name is part of a larger phrase.
Example:
* The Eiffel Tower is in Paris France.
Additional Notes:
* Proper nouns: Place names are proper nouns, so they are capitalized.
* Consistency: Be consistent with your punctuation. If you use commas in one part of your writing, use them throughout.
Pro Tip: If you're ever unsure, look up how place names are punctuated in well-respected publications. You can also check a style guide like the AP Stylebook or the Chicago Manual of Style.