A sunken courtyard in residential architecture is a garden or courtyard that is located below the level of the surrounding ground. These courtyards can create a sense of privacy and tranquility within urban environments. They are often used in modern and traditional architectural designs to enhance the aesthetic appeal and functionality of the space. The pictures of such courtyards typically showcase their unique layout, landscaping, and integration with the surrounding building. They may also feature elements like water features, pergolas, or garden furniture.