The excavation of what city, destroyed in 79AD, was begun in 1748?

Question

What city, founded around 1048 by King Harald III, was largely destroyed by fire and rebuilt from 1624 by King Christian IV and named Christiania, and reverted to its original name in 1925?

Answer 1

Pompeii was an ancient Roman city near modern Naples in the Campania region of Italy, in the territory of the comune of Pompei. Pompeii, along with Herculaneum and many villas in the surrounding area (e.g. at Boscoreale, Stabiae), was buried under 4 to 6 m (13 to 20 ft) of volcanic ash and pumice in the eruption of Mount Vesuvius in AD 79. Volcanic ash typically buried inhabitants who did not escape the lethal effects of the earthquake and eruption.