Identifying feature
Vertical pier Narrow vertical bands of stone or brick, called piers, running the full height of a facade between recessed columns of windows. They are common on early skyscrapers and Art Deco towers.
a sign of these styles Art Deco c. 1925–1940 Jazz-age glamour: towers stepping back as they rise, strong vertical lines, and zigzag or sunburst ornament. Chicago School c. 1880–1910 The first skyscrapers: steel frames shown as honest grids, huge three-part windows, ornament saved for base and top. Expressionism c. 1910–1930 Sculptural brick and concrete buildings with curved or faceted masses, rounded corners, and tall prow-shaped or stepped tops. Perpendicular Gothic c. 1330–1550 English late Gothic: thin stone bars running floor to ceiling, enormous gridded windows, and fan vaulted ceilings. Stripped Classicism c. 1925–1950 Symmetrical stone buildings with flat pilasters or piers without capitals, tall windows in a regular grid, and low-relief sculpture.