Roman Ruins of Tróia

The Roman Ruins of Tróia is an archaeological site on the left bank of the River Sado, on the Tróia Peninsula opposite Setúbal, in Setúbal District, Portugal[1]. The complex includes extensive fish processing facilities (garum factories), thermal baths, and burial sites dating from the 1st to 6th centuries CE[1]. It represents one of the largest Roman fish sauce production centers on the Iberian Peninsula, with dozens of concrete vats discovered[1]. The site has been classified as a Portuguese National Monument since 1910[1].