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. performing arts structures
9. performing arts buildings

Anotations

Scope note:

Big tops, or circus tents, were first introduced ca. 1825 by the American itinerant company of J. Purdy Brown. This innovation soon became a standard of circus performances worldwide. Where a circus is made up of multiple tents, the big top is the main tent.