From Wikipedia: https:https://en.wikipedia.org/wiki/Pompeii

Pompeii is a UNESCO World Heritage Site and is one of the most popular tourist attractions in Italy, with approximately 2.5 million visitors annually.

After many excavations prior to 1960 that had uncovered most of the city but left it in decay, further major excavations were banned or limited to targeted, prioritised areas. In 2018, these led to new discoveries in some previously unexplored areas of the city.