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. water recreation structures
10. swimming pools
11. indoor swimming pools (buildings)

Anotations

Scope note:

Buildings housing indoor swimming pools, particularly large buildings or complexes containing multiple pools, and occasionally also an area of a sea, lake, or other outdoor body of water suitable for swimming.