Narrow windows are openings in walls that are significantly smaller in width compared to their height. They are often designed to provide limited views and natural light while maintaining privacy and security. This architectural feature can be found in various styles of buildings, from historical structures to modern homes. These windows can also enhance energy efficiency by reducing heat loss and minimizing the amount of sunlight entering a space. In some cases, narrow windows are used in fortifications or castles to allow for defensive measures while still providing a glimpse of the outside environment.