A river of central Italy rising in the northern Apennines and flowing about 24 km (50 mi) to the Ligurian Sea.Flooding of the Arno has caused severe damage to art treasures in Florence.

• 阿尔诺河：意大利中部一河流，发源于亚平宁山脉北部，流程约24公里（50英里），后注入利古里亚海。