In the United States, the term “downtown” generally refers to the central, most dense part of a city or town, where the tallest buildings are. And the principal street is generally literally called “Main Street.”
There are notable exceptions, however. New York City doesn’t follow this rule.
And there are various anomalies across the country.
For example, in Ohio, the college town of Oxford has an Uptown and a High Street instead of a Downtown and a Main Street.
On the opposite end of the state, the parallel college town Athens also has an uptown and a High Street.
What other U.S. towns and cities are like this? (Places that use “uptown” and “downtown” as directional indicators like Manhattan don’t count.)