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 Flaviae Aquae Flaviae Aquae Flaviae (or "Aquæ Flaviæ") is the ancient Roman city and former bishopric (now a Latin Catholic titular see) of Chaves, a municipality in the Portuguese district of Vila Real. The northwest peninsular region is an area of hot springs and Roman settlements linked to the exploitation of valuable natural resources. Aquae Flaviae was the principal "municipium civitas" in the northwest (from epigraphic findings) implanted in the Trás-os-Montes, on a small hill on the banks of the River Tâmega, in the Roman province of "Gallaecia". This was a fertile area, where hot springs abound, in addition to a