Identifying feature
Colonnade A row of evenly spaced columns carrying a horizontal beam, called an entablature, or a roof. It often lines a building's front or a courtyard on Greek, Roman and Neoclassical buildings.
a sign of these styles Ancient Egyptian c. 3000–30 BCE Massive stone walls that lean inward, giant gateway towers, and columns shaped like papyrus and lotus plants. Ancient Greek c. 900–100 BCE Marble temples of columns carrying flat stone beams, in the Doric, Ionic, or Corinthian patterns, under a low roof triangle. Charleston Single House c. 1700–1900 A narrow house with its gable end to the street and tiered side porches reached through a street door. Dravidian c. 600–1750 Stepped pyramidal towers: gateway gopurams crowded with painted figures, pillared halls, and walled temple enclosures with water tanks. Empire c. 1800–1830 Triumphal arches, victory columns and temple-front porches with tall Corinthian columns, decorated with eagles and bees. Indian Classical c. 300 BCE–1200s Stone temples rising in tall carved towers, with surfaces packed with sculpture. Pahlavi c. 1925–1979 Symmetrical government buildings with Persepolis-style columns, Sasanian arches, reliefs, and plain brick or marble walls. Persian (Achaemenid) c. 550–330 BCE Vast halls of tall columns with bull and lion capitals, reached by wide stairways lined with carved processions. Stalinist Classicism c. 1933–1955 Soviet power in wedding-cake tiers: colossal colonnades, sculpted workers, and spired towers stepping into the sky. 
