In some homes and buildings there is a small window above a door or up high that can often serve solely as decoration or swivel open up just a little. Transom windows —that’s their name— come in a variety of shapes and sizes.
Because they are high up, when transom windows are above front doors or above, say, living room windows they can allow sunlight to stream into a room. Also, you can close your curtains but still get the benefits of natural light from the transom window above. Also, when they swivel open, they can allow for air circulation.
Less common today are interior transom windows above doors or front doors in older apartment buildings. There were popular—and necessary—before the days of air conditioning. They allow for light and cross ventilation while still maintaining privacy because they are small and up high. Today, they are still a great addition to homes for both decorative and functional purposes in rooms that need a little extra ventilation. In older homes, they’re a terrific original feature that can easily be preserved.