A ribbed vault is an architectural feature commonly used in Gothic and Romanesque buildings. It consists of a framework of arched ribs that support the ceiling or roof, creating a series of intersecting arches. This design not only adds strength but also allows for the inclusion of large windows, enhancing natural light within the structure. The ribs of the vault are typically made from stone or brick, and they help distribute weight more evenly. This technique was popularized in structures like cathedrals, such as the Notre-Dame de Paris, allowing for taller and more intricate designs while maintaining stability.