An addon airport has been posted over on TO for KAUW, Wausau Downtown Airport at Wausau, Wisconsin. I like it very much as the dev used hangars from the Windhover Open Hangar library. That adds life to the airport. Just wish more of other addon airports included open hangars.
I looked up Wausau Downtown and found it participates with an active fly-in dining social club in Wisconsin. I am posting a couple of links below. Great destinations for simulator $100 hamburger flights... The link shows other Wisconsin airports that participate and the 2022 schedule. And click on the "RESTAURANTS" link at the linked page and it will produce a list of other $100 hamburger destinations in Wisconsin, plus a few in neighboring states. Remember, its Wisconsin, so think "$100 Cheeseburger"!
https://flightsim.to/file/34844/kauw-wausau-downtown-airport-wausau-wi
http://moonlightflight.com/flysocial/wi_central.html
http://moonlightflight.com/flysocial/wi_central.html