What building feature is notably emphasized in the designs of Frank Lloyd Wright?

The design philosophy of Frank Lloyd Wright is deeply rooted in the idea of harmony between humanity and nature. This is reflected in his remarkable emphasis on using natural light and organic materials. Wright believed in integrating his buildings with the natural landscape and promoting a sense of connection to the environment. He often designed large windows and open spaces to allow ample natural light to flood the interiors, creating a feeling of unity with the outdoor spaces.

The choice of organic materials, such as wood and stone, was also crucial in Wright's designs. He favored materials that reflected the colors and textures of the surrounding environment, thus further enhancing the relationship between the structure and its setting. This approach not only created aesthetically pleasing interiors but also fostered sustainability and a sense of belonging to the natural world.

In contrast, other design elements like vertical lines, symmetry, complex geometries, elaborate ornamentation, and heavy stone constructions do not encapsulate Wright's philosophy as effectively. While he may have incorporated some elements of verticality and geometric forms in certain projects, they do not define his overarching vision, which celebrated naturalism and simplicity in building design.