I transformed the pull up bar into a ring station so that people could do pull ups, muscle ups, dips, etc, on the rings easier because their feet won't touch the ground.
You can even include links to a YouTube or Vimeo of a digital walk-through like this one: https://youtu.be/ncaVQ2V6XXU
Adaptive Reuse
Architects often find creative ways to reuse old structures that are no longer in use. Check out how old rail lines were adapted to create New York's High Line and Chicago's 606.