Oplontis was a Roman city that, like the nearby Pompeii, was buried under a deep layer of ash by the eruption of Mount Vesuvius on August 24, AD 79. It is today the location of the under-visited Villa Poppaea, the villa of the wife of Emperor Nero, which was excavated in the mid-20th century. It's a grandiose holiday villa from the 1st century B.C. that houses which are considered to be some of the finest examples of Pompeian wall paintings in the familiar bright vermilion and turquoise hues. Originally the villa had a pool, courtyards, arcades and servants’ quarters.
A second villa, the Villa of L. Crassius Tertius, was discovered in 1974, 250 metres east of the Villa of Poppaea, during the construction of a school. It was named following the finding of a bronze seal bearing Crassius' name.