“Since 2009 the Swiss School of Archaeology in Greece has started a new campaign of excavations in the centre of the Roman city of Eretria, on the west coast of Euboea (Greece). A monumental public building dated from the 2nd century AD, probably Roman baths, was discovered there in 2010. One of its rooms was decorated with a well-preserved mosaic, made of black and white pebbles set in simple geometric patterns. This pavement is technically close to the other mosaics found in Eretria and lies clearly within the framework of the tradition of the Hellenistic mosaics. It attests the persistence of the pebbles’ art during the Roman period.”