Dogana d'Acqua (Water Customs)
It was a customs barrier placed along the Leopoldine Walls, at the terminus of the Navicelli Canal, for the control of commercial traffic with Pisa.
It was built in 1841, based on the design of Carlo Reishammer. Originally consisting of two floors, it was embellished with elegant cast iron sculptures, three dolphin statues symbolizing good wishes for travelers and an elegant stone facade based on a three-arched bridge and located in the center of a vast dock divided into an internal and an external part. The two lateral "lights" of the bridge were used for the entrance and exit of the ship in order to avoid confusion in customs operations inside.
The bombings of the Second World War produced very serious destruction, which only survived the lower part of the imposing building and two side arches, still accessible for the passage of boats in the canal; later a part of the dock was filled up with earth or replaced by roads. Today a modern building has been built over the three arches of the old customs house and part of the original dock has been reconstituted.