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 form]
8. [single built works by form: height]
9. multistory buildings
10. high-rise buildings

Anotations

Scope note:

Tall buildings that were experimenting with techniques to bridge older to newer building technologies, primarily moving from load-bearing masonry structures to full steel-frame construction. Included are buildings built during a short but significant period in the late 19th-century.