Mosaics at the Musée de la Romanité in Nîmes, France

Opened in June 2018, the Musée de la Romanité is adjacent to the famous Arena of Nîmes, an imposing Roman amphitheater built in the 1st century CE and one the world’s best-preserved examples of Roman architecture.  Founded by the Romans in the 1st century BCE with the name of Colonia Nemausus, Nîmes quickly achieved importance during the Roman Empire for its strategic position halfway along the Via Domitia that connected Italy and Spain. The city still retains some of the most impressive Roman buildings in Europe, including the Maison Carrée, the Temple of Diana, a part of the ancient walls with two gates, the Pont du Gard Roman aqueduct, and the Amphitheater.
The new museum houses some of the finest Roman mosaics in France. 

https://www.inexhibit.com/mymuseum/musee-de-la-romanite-nimes-elizabeth-de-portzamparc/

Here are a few examples:

Medusa mosaic courtesy of Wikimedia Commons contributor Finoskov

This mosaic looks very similar to one I've seen from Pompeii. Courtesy of Wikimedia Commons contributor Rjdeadly

Mosaic of a Nereid riding a hippocamp courtesy of Wikimedia Commons contributor Graeme Churchard

Another Medusa mosaic courtesy of Wikimedia Commons contributor Herbert Frank

Mosaic of birds and griffins courtesy of Wikimedia Commons contributor 

Carole Raddato

Mosaic of a wreathed human figure courtesy of Wikimedia Commons contributor 

Carole Raddato

Pentheus mosaic courtesy of Wikimedia Commons contributor Finoskov

Leopards with Krater mosaic courtesy of Wikimedia Commons contributor Finoskov