Long galleryIn architecture, a long gallery is a long, narrow room, often with a high ceiling. In Britain, long galleries were popular in Elizabethan and Jacobean houses. They were normally placed on the highest reception floor of English country houses, usually running along a side of the house, with windows on one side and at the ends giving views, and doors to other rooms on the other. They served several purposes: they were used for entertaining guests, for taking exercise in the form of walking when the weather was inclement, for displaying art collections, especially portraits of the family and royalty, and acting as a corridor. Matroneum Architecture