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a colonnade is a linear series of columns.
69 meters in length, 19 meters in width makes the perimeter 176 meters.
colonnade
The Parthenon had a total of 69 columns. There were 46 outer columns and 23 inner columns.
the parthenon colums are made of cement
Data Sheet
In architecture, a colonnade is a long sequence of columns joined by their together. Colonnades are often free-standing, or part of a building.
Doric
Doric.
The Parthenon is a temple of the Doric order with eight columns at the façade, and seventeen columns at the flanks.
The columns were doric style
pentilic marble