use. Coins found there enable parts to be dated to the reign of the Emperor Claudius. The amphitheatre eventually collapsed through disuse and neglect. Aqueduct The Plavno Polje is an entirely underground aqueduct, so that water stayed cool in the summer and could not freeze in the winter. It is about 32.6 kilometers long. 170m height-difference are between the source and the town. It flowed 86 liters per second. The location is only partially archaeologically investigated. A pre-Roman Liburnian builder can not be excluded at the moment in accordance with previous studies. Legends There are two old legends about the construction of this aqueduct. The first story is: Two men courted a woman. One man should build a town, the other man should build an aqueduct to this town. And who would be first, he would receive her as his wife. Both done simultaneously, but that one, who had built the town, judged, that his town was not finished yet, and so the other one should marry her. With the earth, which was dugged out at the building of the aqueduct, was built a hill and on the hill a village. The name of that one, who built the aqueduct, was Rade and so is the village also called Radučka glavica. Another old legend about this aqueduct is: Selemnus, a beautiful young shepherd in those parts, was beloved by Argyra, the Nymph, from whom the town and fountain of that name were called; but the flower of his age being over, the Nymph deserted him, upon which he pined away, and was transformed into a river by Venus; after this he still retained his former passion, and for some time conveyed his waters, through a subterraneous passage, to Argyra's fountain. And because they both had separated, but those story was never forgotten, the names remained in memory in Argyra and Selemnos near Korinth and in Argyruntum and Zrmanja. So the aqueduct stayed in memory. The major harbour of Liburnian navy since 5th century BC was Corynthia at eastern cape of Krk island. References Literature Marin Buovac: O natpisnoj građi rimskih amfteatara na prostoru istočnojadranske obale / On the inscriptions of Roman amphitheatres in the Eastern Adriatic seaboard, Vjesnik za arheologiju i povijest dalmatinsku, Vol. 105, No. 1, 2012. Marin Buovac: Duhovni svijet i božanstva gladijatora u sklopu rimskih amfiteatara na tlu današnje Hrvatske / The spiritual world and deities of