Hierarchy classification:

1. top of the aat hierarchies
2. Objects Facet
3. Built Environment (hierarchy name)
4. Built Complexes and Districts (hierarchy name)
5. complexes (buildings and sites)
6. [complexes by function]

Anotations

Scope note:

Grounds and complexes designed to educate visitors about animals, plants, weather, and the environment, often including structures for educational activities and outdoor grounds containing native plant communities, wildlife habitats, walking trails, and other facilities.