Cupolas are architectural features commonly found in residential buildings, especially in traditional and historic styles of architecture. They are small, dome-like structures often positioned on the roof or at the top of a building's facade. Cupolas serve both practical and aesthetic purposes in residential architecture. Historically, cupolas were used primarily for ventilation purposes. By being positioned at the highest point of a building, cupolas allowed hot air to escape, promoting natural airflow and cooling within the structure. In modern residential architecture, cupolas may still serve this function, especially in regions with warm climates. In some cases, cupolas may incorporate windows or openings that allow natural light to enter the interior spaces below. This natural lighting can help illuminate attic or loft spaces, reducing the need for artificial lighting during the day and creating a more pleasant living environment.