Personally, I'm amazed that I've gone this long without talking about Lunken Airport. Lunken is probably in my top 5 favorite spots in Cincinnati, especially if we're talking in terms of local history.
Look at this gorgeous little municipal airport. This used the be The Airport, folks. ("When the original 1000-acre (4 km²) airfield was dedicated in 1925, it was the largest municipal airfield in the world." --Wikipedia)
Dan and I were actually there to visit Sky Galley as neither of us had been there before, despite all my Lunken lovin'. I only found out about Sky Galley when I took a charter flight out of Lunken-- I asked the pilot's wife for a history lesson, and she was telling me about how Sky Galley used to make all the food that would be served in-flight. Boxes of fried chicken, if I remember correctly. ("Sky Galley Restaurant has been in nearly continuous operation for decades, and is so named because the first meals served on a commercial airliner [American Airlines] were prepared here." --Wikipedia again)
Now Sky Galley is a restaurant where you can watch the planes fly in and out of Lunken. The menu is great-- bar food and then some, nothing too challenging but a great selection of familiar comfort foods-- and when we were in there, the place was EMPTY. (It was a Thursday night.) The weather was gorgeous and it was the perfect way to spend an evening.
Lunken has been open every time I've randomly popped in for a visit. It is, after all, a functioning airport. There is so much fabulous art deco detail throughout the entire building... it just kills me, no matter how many times I visit.
Aaaaaah the art deco I love it so muuuuuuch...
Lunken's website: http://www.cincinnati-oh.gov/transeng/pages/-7207-/