Which sentence requires semicolons instead of commas

I will be traveling to Madrid, Spain, on Monday; Paris, France, on Wednesday; and Rome, Italy, on Friday.

A sentence that requires semicolons instead of commas is usually one that contains a list of items or phrases that already include commas within them. Semicolons are used to create a clearer separation between the different items or phrases in the list. Here's an example:

Incorrect: I visited Paris, France, Rome, Italy, and Barcelona, Spain.
Correct: I visited Paris, France; Rome, Italy; and Barcelona, Spain.

In this case, the use of semicolons instead of commas clarifies the separation between the different cities and their corresponding countries.