Hierarchy classification:

1. top of the aat hierarchies
2. Objects Facet
3. Built Environment (hierarchy name)
4. Single Built Works (hierarchy name)
5. single built works (built environment)
6. [single built works by specific type]
7. [single built works by function]
8. recreation structures
9. recreation buildings
10. sports buildings
11. [sports buildings by function]
12. physical education buildings

Anotations

Scope note:

Modern buildings designed and equipped for indoor sports, exercise, or physical education and training; may include a court for ball games or other excercise, bleachers for observers, changing rooms, and bath or shower facilites. For ancient buildings where competitors in games were trained, and where men engaged in social and intellectual pursuits, use "gymnasia (ancient buildings)."