Identifying feature
Geometric ornament Decoration made of zigzags, chevrons (V shapes), stepped forms and other repeated geometric shapes instead of plants or figures. It is the main ornament on Art Deco buildings.
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. Czech Cubism c. 1911–1925 Prague facades broken into prisms and pyramids: faceted planes, angled window frames, and later round arches and ovals. Mayan Revival c. 1920–1940 Walls sloping inward, stepped rooflines, corbel arches, and bands of geometric relief that imitate Maya glyphs. Moorish / Mudéjar c. 800–1600 Spain's Islamic tradition: horseshoe arches, carved stucco, glazed tilework, and patterned brick. Moorish Revival c. 1840–1930 Horseshoe arches, striped brick or stone, onion domes and slender minaret-like towers on synagogues, theatres and hotels. Norman c. 1050–1200 Massive square towers, very thick walls, and round arches carved with zigzag patterns. Postmodernism c. 1975–1995 Classical bits quoted at the wrong scale in bold colors: columns, pediments, and keystones with a wink. Russian Orthodox c. 1000–1900 Onion domes in gold and candy colors clustered over white walls and steep tent-roofed towers. Vienna Secession c. 1897–1910 Art Nouveau squared off: geometric gold ornament, laurel and rosette motifs, and crisp white facades. 
