Venice is the city of bridges: it has more than 400 and the Bridge of Sighs is one of the most known in the world.
Wine & Food Magazine

It is suspended over the Rio di Palazzo and connects the Doge's Palace to the Prigioni, the prison built across the canal in late 16th century.
Antonio Contino designed and built the Bridge of Sighs in 1600. It is made of fine white Istrian stone.
Legend has it that the bridge earned its name from the last breath of the prisoners in the free world because, once convicted in the kingdom of Dogi they never could go back. The prisoners who crossed through it, on the way to their prison cells or the execution chamber, would sigh as they caught their last glimpses of the outside world through the tiny windows.