What is distinctive about the Wainwright Building?

Question

Quizplus · Accepted Answer

The Wainwright Building is distinctive for its internal steel skeleton, which was a revolutionary design feature at the time of its construction in 1891. This allowed for the walls to be thinner and for larger windows to be used, giving the building a more open and airy feel. While the building did incorporate some elements of the Gothic Revival style, such as pointed arches, there were no vaulted arches on a colossal scale as in choice C, nor were there walls of glass derived from the Crystal Palace as in choice A or avoidance of all flat surfaces, straight lines, or symmetry of any kind as in choice D.

What Is Distinctive About the Wainwright Building