Inarchitecture, along gallery is a long, narrow room, often with a high ceiling. In Britain, long galleries were popular inElizabethan andJacobean houses. They were normally placed on the highest reception floor ofEnglish 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, fordisplaying art collections, especially portraits of the family androyalty, and acting as a corridor.
A long gallery has the appearance of a spacious corridor, but it was designed as a room to be used in its own right, not just as a means of passing from one room to another, though many served as this too. In the 16th century, the seemingly obvious concept of the corridor had not been introduced to British domestic architecture; rooms were entered from outside or by passing from one room to another.
Later, long galleries were built, sometimes in arevivalist spirit, as atHarlaxton Manor, an extravagant early-Victorian house in Jacobean style, and sometimes to house a large art collection, as atBuckingham Palace, which has a long interior space lit from above, called the Picture Gallery.
Burghley House, near Stamford, Lincolnshire (converted into separate rooms in the late 17th century such as rooms known as Queen Elizabeth I Bedroom and Blue silk Dressing room)