They were shopping for items to accentuate their 1950s-themed rathskeller.
From the stltoday.com
The only artifact is a huge wooden barrel in the hotel rathskeller.
From the dispatchpolitics.com
My table was bare wood and looked like it had been salvaged from a college town rathskeller.
From the orlandosentinel.com
The rathskeller has unpainted wooden cabinets and a big fireplace, but no bar or beer serving apparatus.
From the jsonline.com
There is also a row of deck chairs beneath heat lamps for those aspiring to feel like a carved roast in a rathskeller.
From the nytimes.com
One recent night at George Washington University in Washington, the student rathskeller and the bowling alleys were jammed.
From the time.com
The name may sound like a kind of speak-easy or rathskeller where you have to know the secret password or door knock to gain entrance.
From the chron.com
In Louisville you have missed one of our local treats if you have not seen the magnificent ceramic rathskeller, created by Rookwood, in the basement of the Seelbach Hilton Hotel.
From the courier-journal.com
More examples
A tavern below street level featuring beer; originally a German restaurant in the basement of city hall
A bar or restaurant in a basement, especially one that serves beer