This postcard comes from just about as middle America as you can possibly get in the 1950s: Youngstown, Ohio. These days, there's only one Holiday Inn in Youngstown (though there's 5 Holiday Inn Expresses) and it's at the other end of town, in a far more modern building with far more modern Holiday Inn branding.
The kitschy, lit-arrow sign you see below may sadly be long gone, but the people who were kids and staying at Holiday Inns during this period are still around, for the most part. They're the ones retired, driving the country in an RV perhaps, and still looking out for the glowing green Holiday Inn logo.
[Vintage document scan: HotelChatter]