A groin vault is an architectural feature formed by the intersection of two barrel vaults, creating a curved ceiling. This design allows for a more complex and stable structure, distributing weight evenly across the arches. Groin vaults are commonly found in Roman and Gothic architecture, showcasing their strength and aesthetic appeal. The use of groin vaults can be seen in various historical buildings, such as cathedrals and palaces. They not only provide structural support but also enhance the visual experience of a space, allowing for larger and more open interiors. This technique has influenced modern architecture as well.