Aquae Iasae has discovered the ancient spring-fed Roman pool. This pool has the dimensions of 8x13.5 meters and the depth is 2.6 meters. The natural source of the baths' thermal water, was fenced in by large stone blocks. So far, the only similar example of such a pool is known in the Roman settlement of "Aquae Sulis" (Bath) in England. Specific conditions of soil around the springs of water, and travertine deposits, have given rise to good preservation of Roman architecture, so that this complex is one of the best preserved Roman sites in Croatia. Aquae Iasae Aquae Iasae was the Roman
Roman Baths (Bath) legend was given great prominence as a royal endorsement of the waters' qualities, with the embellishment that the spring had cured Bladud and his herd of pigs of leprosy through wallowing in the warm mud. The name Sulis continued to be used after the Roman invasion, leading to the town's Roman name of "Aquae Sulis" ("the waters of Sulis"). The temple was constructed in 60–70 AD and the bathing complex was gradually built up over the next 300 years. During the Roman occupation of Britain, and possibly on the instructions of Emperor Claudius, engineers drove oak piles to provide a