Answer the following question in 3-4 complete sentences. Name and describe the type of structure shown in this sketch. What development(s) made this structure, and others similar, possible?

Answer:

The sketch shows a skyscraper, specifically the Chrysler Building, which is an example of a steel-frame structure. This type of building is tall, narrow, and supported by an internal skeleton of steel rather than thick masonry walls. Developments in steel-frame construction and the invention of the elevator made this building, and others like it, possible. New engineering techniques also allowed architects to build higher and more safely.