The only part of Livorno after WWII that managed to conserve a large part of its historic landmarks and architecture, among which include several churches and buildings. Though it doesn’t align with the Medicea construction it is the true historic center of the city. 

Conceived just like the Venetian  lagoon city, this part of the city is  today considered the true historical heart of Livorno. A neighbourhood, a city within a city which  is then a real island crossed by  bridges and canals, a unique and  original place that seems to be  designed by the inspiration of a  painter. The district still reveals  its original structure and all its  charm intact. The tall mansions  had direct access to the canal,  just below street level, to facilitate the entry of goods directly  into the internal courtyard. On  the docks, tobacco, spices, chocolate, coffee, indigo, Greek mastic and even diamonds were unloaded. The sea enters between  the buildings and streets, forming navigable canals that surround the pentagonal perimeter  of the historic city.

In the summer there is a festival that celebrates the area. Read this article for more information.