Around the base of the Campanile of St. Mark a building has been erected, which is called the Loggetta; it is a work by Sansovino, and was added in the year 1540.
Piazza San Marco or St Mark's Square is the principal public square of Venice, where it is generally known just as "the Piazza". All other urban spaces in the city (except the Piazzetta and the Piazzale Roma) are called "campi" (fields). The Piazzetta is an extension of the Piazza towards the lagoon in its south east corner. The two spaces together form the social, religious and political centre of Venice and are commonly considered together.