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. institutional buildings
9. health and welfare buildings
10. health facilities

Anotations

Scope note:

General term for rooms or buildings having equipment for physical work outs, such as weights, treadmills, and the like. To distinguish facilities having work out equipment but also other amenities and classes, prefer "fitness centers."