When you see an architectural gown, think of Charles James. After all, it's not all too surprising that a designer with interests in sculpture, science, and math would also obsess over construction.
According to The Metropolitan Museum of Art, "His fascination with complex cut and seaming led to the creation of key design elements that he updated throughout his career: wrap-over trousers, figure-eight skirts, body-hugging sheaths, ribbon capes and dresses, spiral-cut garments, and poufs." Add those to his gowns, and the Anna Wintour Costume Center has quite the archive on its hands.
Source: The Metropolitan Museum of Art