A house with a Priapic street sign at Pompeii: interior and exterior views. Etching by F. Piranesi, 1804, after G.B. Piranesi.

Below (Fig. I), a view of the house from the street with a central pier showing a phallus in a tabernacle, with graffiti below. Above (Fig. II) the same structure viwed from inside the house, showing a wall painted with two snakes approaching an altar from either side, and olive trees below