This is mostly of interest for the photos, from the Library of Congress, from when the station was new. Today in History, March 31, 1933: Cincinnati’s iconic Union Terminal opened
It was an Art Deco masterpiece in its day. It has been a museum for a number of years, and was just recently refurbished, though I haven't been there since it reopened. Though I am not actually sure what the COVID-19 impacts on its schedule have been.
The Tea Room, the Lunchroom, the ticket windows, the offices, etc. They were Art Deco wonders. Be sure to check out the photo gallery at the link above.
The image is from WikiMedia Commons. You can find more information at this link regarding attribution, and more.