What is a defining characteristic of the Chicago school of architecture?

The defining characteristic of the Chicago school of architecture is indeed the development of the skyscraper. This architectural movement emerged in the late 19th century and played a pivotal role in the evolution of urban design in Chicago. Architects associated with this school, such as Louis Sullivan and Daniel Burnham, focused on steel-frame construction, which allowed buildings to reach unprecedented heights. This innovation laid the groundwork for modern skyscrapers, characterized by their verticality and innovative use of materials.

The development of the skyscraper was not just about height; it also involved creating functional and aesthetically appealing structures that addressed the needs of a growing urban population. This shift in design strategy also emphasized large windows and the use of new technologies, contributing to a distinct architectural style that prioritized both form and function.

While colorful facades, integration of landscaping, and classical styles are elements seen in various architectural movements, they do not encapsulate the transformative impact and defining feature of the Chicago school's contribution to architectural history. The skyscraper serves as a hallmark of both the Chicago school and the city's architectural identity.