What architectural feature is associated with Italianate and classical architecture, often seen at the corners of buildings?

The architectural feature commonly associated with Italianate and classical architecture, particularly found at the corners of buildings, is known as a quoin. Quoins are the large, often decorative stone blocks that reinforce the corners of structures, providing both structural stability and visual emphasis. This feature not only serves a practical purpose in supporting the building but also enhances its aesthetic appeal, creating a strong and elegant appearance.

In classical architecture, quoins often evoke a sense of grandeur and formality, aligning with the stylistic ideals of both Italianate and classical design. Their distinctive look can be achieved through various materials and finishes, allowing them to stand out distinctly from the walls they support. This contributes to the overall richness of the building's design, making them a hallmark of such architectural styles.

The other terms, while related to architecture, refer to different elements. Spandrels are the areas between the arches in an archway, pilasters are flattened columns that provide the appearance of supporting a structure but do not bear real weight, and fascia refers to a horizontal band or board that runs along the top edge of a building or roof. Understanding these distinctions helps clarify the unique role that quoins play in the architectural narrative of Italianate and classical structures.