Type into Google: "Why is [city] so" and let Google reveal some comic gold of America's inquiries. Now, I didn't label each city, but hopefully it should be pretty obvious. Approximately half of these are clearly talking about either a city's sports team (usually football) or airport. Other than that, just some fun responses. Especially for the quirky ones like Nashville, which references the defunct TV show rather than the city.
If you find any other particularly interesting or funny google autocompletes, please comment as I'd love to hear them.