Châteauesque is an architectural style that emerged in the late 19th and early 20th centuries, particularly in North America. It draws inspiration from the grand châteaux (castles) of France's Loire Valley. This style is characterized by its elaborate and eclectic design elements, which include steeply pitched roofs, turrets, ornate detailing, and a sense of opulence. Châteauesque buildings often feature a mix of Renaissance and Gothic Revival architectural elements, creating a distinctive and romantic architectural aesthetic. This style was popular for mansions, public buildings, and institutions during its heyday.