What best describes an atrium in architectural design?

An atrium in architectural design is best described as a large open space within a building that is often enclosed by glass. This design element serves multiple purposes, including enhancing natural light within the interior spaces, creating a visually appealing environment, and facilitating air circulation. Atriums can be found in various building types, such as hotels, office buildings, and shopping centers, where they act as central gathering areas that can connect different parts of the structure. The use of glass allows for an abundance of daylight to enter, which can contribute to energy savings by reducing the need for artificial lighting during the day. Additionally, the open nature of an atrium can enhance the overall spatial experience, making it a focal point for both aesthetics and function within the architecture.