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
Aquae Sulis cuamiun ai" "The affixed – Deuina, Deieda, Andagin, (and) Uindiorix – I have bound" An alternative translation based on a much better knowledge of the Celtic languages is the following: "May I, Windiorix for/at Cuamena defeat (alt. "summon to justice") the worthless woman, oh divine Deieda." (Alt. "Divine Deiada, may I, Windiorix, bring to justice/defeat (in court) the woman at Cuamena".) This is a superior, though still uncertain, translation in that it takes into account the nominal cases of the nouns: "Windiorix" (alt. "Windorix") - nominative masculine (subject), lit. "fair-headed" ("windo") "king" ("rix"); "Dewina Deieda" - nominative/vocative feminine "divine Deieda"