Venice began on this outer island of Torcello, founded here as early as the seventh century, and by the 12th century, it was a flourishing commercial town.
Of its palaces, churches, shipyards, and docks, only two churches and a handful of houses remain, dotted over the large island. You can get some idea of the importance of Torcello from its cathedral, dedicated in 639 to Santa Maria Assunta.
It is considered the best remaining example of Venetian-Byzantine architecture. It was reconstructed in 834 and 1008, and the portico and two lateral apses were added in the ninth century; much of the building dates from the 11th century. The mosaics lining the interior are outstanding.
