Answer:
MAKE NO CHANGE
Explanation:
There is nothing wrong with the punctuation of the sentence we are analyzing here. First, let's take a look at the colon. When we need to introduce a long list of items, a colon should be used right before the list begins. That is exactly what we have here. The speaker placed a colon before listing the locations to be visited.
Now, we can usually separate the items in a list with commas. However, in this case, not only do we have long names for each location, but we also have the "location of the location". That is, a certain museum is located in a certain city, and to separate the name of the museum from the name of the city, we must use a comma already. For that reason, when we name another location, a different one, we should use a semicolon instead of a comma.
