Ancient Oplontis was a seaside area, located approximately five kilometers to the west of Pompeii. The name Oplontis appears in only one source, the Tabula Peutingeriana, a 12th-century copy of a Roman map. From that map, archaeologists have argued that ancient Oplontis lies under the modern town of Torre Annunziata. In the area of Torre Annunziata known as Le Mascatelle, excavations have revealed two major sites, Oplontis A and B. Although knowledge of the area dates back to the late 16th century, when the track of the Sarno Canal cut through the southern part of Oplontis Villa A, modern excavation at the villa did not begin until 1964. Work at Oplontis B began in 1974 when construction on a new school discovered evidence of the ancient structure. Though near to each other, the two sites represent very different buildings. Oplontis A was a luxury villa perched on a cliff overlooking the Bay of Naples with sophisticated architecture, spectacular wall painting, sculptures, manicured gardens, and a sixty-meter swimming pool. Oplontis B was a large commercial building that was used for the exportation of wine.