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. gate structures

Anotations

Scope note:

Monumental gateways to Egyptian temples, consisting of a pair of towerlike structures with slanting walls flanking the entrance portal; may also be used more loosely for any large isolated structures used to mark a boundary, as at approaches to bridges or avenues.