Piazza San Marco, often known in English as St Mark's Square, is the principal public square of Venice, Italy, where it is generally known just as la Piazza. Almost all the other urban spaces in the city are called campi. The Piazzetta is an extension of the Piazza towards San Marco basin in its southeast corner. The two spaces together form the social, religious and political centre of Venice and are referred to together. This article relates to both of them.
A remark usually attributed to Napoleon calls the Piazza San Marco "the drawing room of Europe".
Wikipedia https://en.wikipedia.org/wiki/Piazza_San_Marco
landingPages.LANDING_PAGE.DETAIL.ADDRESS 14 Piazzetta San Marco, Venezia 30124, Italy
landingPages.LANDING_PAGE.DETAIL.COORDINATES 45°26'1.581" N 12°20'22.592" E
