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In page Piazza San Marco:

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In 1723 the bricks were replaced with a more complex geometrical pavement design laid out by Venetian architect Andrea Tirali. Little is known about Tirali's reasoning for the particulars of the design. Some have speculated that the pattern was used to regulate market stalls, or to recall their former presence in the square. Others believe the pattern was drawn from oriental rugs, a popular luxury item in this trading centre.[citation needed]