Hundred-meter tower-the Campanile became the symbol of Venice. It was built on a Roman Foundation in the reign of Doge Pietro Tribuno (888 - 912 years) and over the centuries the bell tower withstood the inclement weather and earthquakes, but weakened due to careless construction works 14 July 1902 collapsed, destroying a small Loretto, Sansovino built at the foot of the bell tower. And the bell tower, and Loretta were reconstructed and opened in 1912.

Three-arch loggetta of Sansovino decorated with four beautiful bronze statues depicting Apollo, mercury, Peace, and Minerva, executed by the same sculptor. It was built in 1537-1549, and in it there was an armed guard of the Republic during the meeting of the Grand Council.

The magnificent Library building is considered a masterpiece of the architect Sansovino. In 1536, the Senate of the Republic decided to build a library that could take books, donated to the city by cardinal Bessarion, in gratitude for the fact that Venice gave him shelter after fleeing from the Turks. With Piazza San Marco in the building are three main entrances: closer to the waterfront is the entrance to the existing library, on the opposite side is the entrance to the Archeological Museum.