A vestibule is a small room or area just inside the main entrance of a building, which serves several purposes such as waiting, reducing heat loss, providing storage space for outdoor clothing, and withholding the larger space view). It is typically located between the outer door and the interior of the building. In ancient Roman architecture, a vestibule was a partially enclosed area between the interior of the house and the street). Vestibules are common in palace architecture, and the style of vestibule used in Genoa, Italy was transformed from a previously modest design to a more ornamental structure, which became a prominent feature of their palace architecture).
A vestibule can also refer to other small spaces or cavities at the beginning of a canal, such as the vulval vestibule, nasal vestibule, vestibule of the ear, vestibule of the larynx, aortic vestibule, and vestibule of the mouth.
In general, vestibules were popular features in new homes from about 1880 to 1930 because they create an additional barrier that keeps heat or cool air in and street noise out.
