House of the Corinthian atrium, Ancient Roman domus in Ercolano, Italy.

The House of the Corinthian Atrium is a Roman domus of about 230 square metres, one of the oldest in Herculaneum, entered from Cardo IV through a brick-columned porch. Four steps lead from the fauces into an atrium that also serves as a peristyle: six white-plastered tuff columns with Corinthian capitals surround an impluvium converted into a fountain with a marble wellhead and euripus. Floors are cocciopesto with coloured marble inserts, and the rooms open off the atrium on all sides except the north.

The house was buried by the eruption of Vesuvius in 79 CE. It is one of the oldest houses in Herculaneum, with its main entrance on Cardo IV. A second storey was added later to enlarge the house, and a staircase ramp in the kitchen led up to it.

The house takes its name from the six white-plastered tuff columns around the atrium, whose capitals are in the Corinthian order. The impluvium at the centre was later converted into a fountain with a marble wellhead and euripus, so the basin that once caught rainwater became a decorative water feature.

The house is entered from Cardo IV through a brick-columned porch; four steps then lead up to the atrium, so watch the threshold and the step up. The floor is cocciopesto with inset coloured marble, and the rooms open off the atrium on all sides except the north. Stay on the marked route and do not step into the fountain basin.

The house takes its name from the six tuff columns around the atrium, plastered white and topped with Corinthian capitals. The impluvium at the centre was later converted into a fountain with a marble wellhead and euripus, and the floor is cocciopesto studded with pieces of coloured marble.