The 2000-year-old Roman mosaic dedicated to the Oceanic Gods is now on display in the Faro City Museum.
It has been described as one of the best-preserved sculptures in the south of the country.
The mosaic was listed as a national treasure in 2018. It was found in a private work in a house near Faro train station may have been the floor of a public building, indicating that Roman Faro owns a commercial area outside the old town.
Faro is a municipality, the southernmost city and seat of the district of the same name, in the Algarve region of southern Portugal.
With a population of 118,000 inhabitants in 2011 (with 64,000 inhabitants in the city proper, making it the biggest city in the Algarve and one of the biggest in Southern Portugal), the municipality covers an area of about 202.57 km2.