This mosaic from the floor of a second-century-C.E. villa whimsically suggests what a dining room floor looked like after a lavish dinner and also tells us something about the menu.

(Asarotos Oikos, “Unswept Room” from Vigna Lupi, Rome/Vatican Museums and Galleries, Vatican State/De Agostini Picture Library/V. Pirozzi/Bridgeman Images)