Gymnasium
From Tardis Wiki, the free Doctor Who reference
The Hyperion III had a gymnasium, also known simply as a gym. (TV: Terror of the Vervoids)
In the video game Happy Deathday, played by Izzy Sinclair on the Time-Space Visualiser, the Beige Guardian recalled that the Red and White Guardians stuck him in a gym locker for nearly three centuries. (COMIC: Happy Deathday)