gallery - A room, building or institution where paintings and other artworks are exhibited; and often where they are also sold.
Literally, "place of the goys," gallery comes from Italian galleria, which comes from Medieval Latin galeria, apparently a variant of galilaea, the porch of a church (sometimes called in English a galilee porch). Galilaea — or Galilee — in turn comes from the Hebrew galil hagoyim: "district of the goys (unbelievers)."
Images of galleries in this first sense:
Lawrence Alma-Tadema (British, 1836-1912), A Sculpture Gallery, 1874, oil on canvas, Hood Museum of Art, Dartmouth College, NH.
Maurits Cornelis Escher (Dutch, 1898-1972), Print Gallery, 1956, lithograph, image 31.9 x 31.7 cm, sheet 41.2 x 40.4 cm, Fine Arts Museums of San Francisco, CA. See optical illusion.
Gallery sometimes refers to a hallway or a covered walkway which has a wall on one side and windows, columns or a balustrade on the other; a loggia. Often a gallery in this sense is the second story of an ambulatory or aisle. Galleries are often confused with porticos, and some can be described as being both.
Also see art careers, Art Dealers Association of America, belvedere, commission, commodification, Kunstkabinette, Kunstkammer, museum, new media, Photo-Secession, preparator, price, theater, vitrine, Wunderkabinette, and Wunderkammer.