DSC_0479 (Medium) Published July 20, 2018 at 768 × 1152 in Family vacation in France: Day 16 in Chantilly and Senlis A Pompeii mosaic on the floor of the Rotunda in the Gallery of Painting, Château de Chantilly. A Pompeii mosaic on the floor of the Rotunda in the Gallery of Painting, Château de Chantilly.