Rialto Bridge
Overview
 
The Rialto Bridge is one of the four bridges spanning the Grand Canal
Grand Canal of Venice
The Grand Canal is a canal in Venice, Italy. It forms one of the major water-traffic corridors in the city...

 in Venice
Venice
Venice is a city in northern Italy which is renowned for the beauty of its setting, its architecture and its artworks. It is the capital of the Veneto region...

, Italy
Italy
Italy , officially the Italian Republic languages]] under the European Charter for Regional or Minority Languages. In each of these, Italy's official name is as follows:;;;;;;;;), is a unitary parliamentary republic in South-Central Europe. To the north it borders France, Switzerland, Austria and...

. It is the oldest bridge across the canal, and was the dividing line for the districts of San Marco and San Polo.
The first dry crossing of the Grand Canal was a pontoon bridge
Pontoon bridge
A pontoon bridge or floating bridge is a bridge that floats on water and in which barge- or boat-like pontoons support the bridge deck and its dynamic loads. While pontoon bridges are usually temporary structures, some are used for long periods of time...

 built in 1181 by Nicolò Barattieri
Nicolò Barattieri
Nicolò Barattieri designed the first Rialto Bridge in 1178. The pontoon bridge crossed the Grand Canal in Venice.Barattieri also erected the three columns in the Piazzetta dei Leoncini....

. It was called the Ponte della Moneta, presumably because of the mint that stood near its eastern entrance.
The development and importance of the Rialto
Rialto
The Rialto is and has been for many centuries the financial and commercial centre of Venice. It is an area of the San Polo sestiere of Venice, Italy, also known for its markets and for the Rialto Bridge across the Grand Canal....

 market on the eastern bank increased traffic on the floating bridge, so it was replaced in 1255 by a wooden bridge.
 
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