Diocletian's Aqueduct is located at the entrance to the city of Split. It was built during the Roman Empire in order to deliver water to the Palace of Diocletian. The length of the aqueduct is 9 kilometers long and connects the river to the core of Diocletian's Palace.

The aqueduct was built during the reign of Diocletian (late 3 - before 4 in.). The difference between the heights of the end points of the aqueduct is 33 meters. Kernel River flowed a few kilometers north-west of the palace, the water from it is delivered directly to the palace, and in the coming settlements.

Currently, the aqueduct was preserved only partially. Least fragment was destroyed aqueduct near the city of Solin. Its length is 180 meters, and height - almost 17 meters.

Aqueduct was badly damaged during the invasion of ready (mid 6th century), then it is not used for 13 centuries. The first restoration was initiated by the mayor of the city of Split in the 1877-1880 biennium. It happened during the rule of the Austro-Hungarian Empire.

The aqueduct fell into disuse in 1932, when the area built the first waterworks Kopilitsu. Currently, the aqueduct again reconstructed in order to preserve this unique architectural monument.