St Mark's Campanile

St Mark's Campanile (Campanile di San Marco) is the bell tower of St Mark's Basilica in Venice, Italy, located in the Piazza San Marco. It is one of the most recognizable symbols of the city. The tower is 98.6 metres (323 ft) tall, and stands alone in a corner of St Mark's Square, near the front of the basilica.

Camplanile has a simple form, the bulk of which is a fluted brick square shaft, 12 metres (39 ft) wide on each side and 50 metres (160 ft) tall, above which is a loggia surrounding the belfry, housing five bells. The belfry is topped by a cube, alternate faces of which show the Lion of St. Mark and the female representation of Venice (la Giustizia: Justice). The tower is capped by a pyramidal spire, at the top of which sits a golden weathervane in the form of the archangel Gabriel. The campanile reached its present form in 1514. The current tower was reconstructed in its present form in 1912 after the collapse of 1902. The tower is currently undergoing structural repairs in order to halt its subsidence.

The initial 9th-century construction, initiated during the reign of Pietro Tribuno and built on Roman foundations, was used as a watch tower or lighthouse for the dock, which then occupied a substantial part of the area which is now the Piazzetta. Construction was finished in the twelfth century, during the reign of Domenico Morosini. Adjoining the base of the campanile is the loggetta built by Sansovino, completed in 1549 and rebuilt in 1912 after it had been destroyed by the fall of the campanile.

Each of the five bells of the campanile had a special purpose. The Renghiera (or the Maleficio) announced executions; the Mezza Terza proclaimed a session of the Senate; the Nona sounded midday; the Trottiera called the members of the Maggior Consiglio to council meetings and the Marangona, the biggest, rang to mark the beginning and ending of working day. They are tuned in the scale of A. The Campanile is currently undergoing a major set of building works that are forecast to last a few years. Like many buildings in Venice, it is build on soft ground, supported by wooden piles. Due to years of winter flooding (Acqua Alta), the subsoil has become saturated and the campanile has begun to subside and lean. Evidence of this can be seen in the increasing number of cracks in the masonry. In order to stop the damage, a ring of titanium is being built underneath the foundations of the campanile. The titanium ring will protect the campanile from the shifting soil and ensure that the tower subsides equally and does not lean.