The city had centuries of life before 79 CE. Its walls, streets, houses and sanctuaries reflect Oscan, Samnite, Greek, Roman colonial and imperial phases, while rebuilding after earthquakes continued until the eruption.
Objects and wall paintings now in Naples or on-site storage once belonged to specific rooms and activities. Open buildings rotate because conservation, staffing and research change daily access; a complete guide follows systems rather than promising every famous house.
Pompeii’s named-ticket and capacity rules, baggage limits and entrance arrangements are live safety conditions. Check the official park site shortly before visiting for current arrangements.
Enter early through the gate that suits the route, read streets before interiors and leave time for conservation displays: the city becomes more precise when gaps and closures are treated as evidence.