turnhalle
A building used as a school of gymnastics, mostly in German contexts.
The Cincinnati Forty-eighters were the first emigres who established a Turnhalle, a recreation center for the development of mind and body.
Where it comes from
German, from turnen (“to exercise, do gymnastics”) + Halle (“hall”).
Adapted from the Wiktionary entry turnhalle (CC BY-SA 4.0).