Pompeii received more than four million visitors in 2024, an absolute record. At the end of that same year a cap of 20,000 daily admissions and a system of named tickets were introduced to prevent resale. In 2023 it had already received almost four million, a third more than the previous year.
Twenty thousand people a day at an archaeological site is a cap, not slack. And the alternative is fifteen kilometres away: another Roman town buried by the same eruption, better preserved in almost everything that matters and with a quarter of the people.
01 Four million and a cap of twenty thousand
It is worth understanding the scale. Four million visitors a year means an average of some eleven thousand a day, and the average is not what you suffer: the crowd concentrates in spring and summer, and that is where the cap of 20,000 becomes necessary.
Pompeii is also enormous. Covering it in full takes several hours of uncovered streets, and in a month like April — the fourth wettest of the year in Naples, with 98.6 millimetres — or August, with average highs of 31.0 degrees, the combination of distance and crowds tells.
This is not an argument for skipping Pompeii. It is an argument for not doing only Pompeii, and for not leaving the rest for 'if there is time', because the rest is where the detail is.
02 One for every four
Herculaneum is in the municipality of Ercolano, inside the Naples urban area, and forms part of the same World Heritage inscription as Pompeii: the archaeological areas of Pompeii, Herculaneum and Torre Annunziata, inscribed in 1997.
The visitor ratio between the two sites has been estimated at one to four: for every person entering Herculaneum, four enter Pompeii. With a much smaller excavated area, that means you can cover it in full without queues and looking closely.
The other practical difference is access. The site entrance is in the centre of the modern town, minutes from the station of the local railway that runs along the skirt of Vesuvius from Naples. No car is needed.
03 The mud made the difference
The two towns died in the same eruption, in AD 79, but not in the same way, and that difference explains everything. Pompeii was covered mainly by ash and pumice falling from the sky. Herculaneum received pyroclastic surges.
Those surges travelled at about 160 kilometres an hour and reached temperatures around 500 degrees. Death was instantaneous through thermal shock, not suffocation. And the material they left ended up accumulating some 20 metres thick over the town.
Twenty metres of hot, compact deposit do two things that loose ash does not. The first is to carbonise organic matter instead of burning it, and the second is to hold structures up from inside as they cool. The upper floors did not collapse: they were packed full.
04 Doors still in their frames
The result is the list of things that exist at Herculaneum and not at Pompeii: wooden roofs, beams, beds, doors still hanging in their frames, shelving, food and papyri. In other words, everything that normally vanishes from a Roman site.
The extreme case is the Villa of the Papyri. Between 1752 and 1754 carbonised papyrus scrolls, black and unreadable, were recovered there, and they constitute the only library of antiquity preserved in place. Most are kept today at the National Library in Naples.
Excavation began in 1738, under Charles III, and remains open in a literal sense: more than 75 % of the town is still buried, and the modern town sits on top of it. That places a physical limit on what can be brought out.
The deposit that killed the town in minutes is the same one that preserved its wooden doors for two thousand years.
05 The vaults on the beach
There is one specific place on the site not to miss, and it is the one that looks least promising. On the ancient shoreline there is a row of stone vaults open to the sea, used for storing boats.
For centuries it was assumed the population had escaped, because no bodies were found. The 1980 to 1982 excavations in this area found more than 55 skeletons; work in the 1990s raised the figure to 296, and in total 340 bodies were identified.
They were on the beach and inside the vaults, that is, waiting to be evacuated by sea. It is the discovery that completely changed the interpretation of what happened here, and it sits in a corner of the site that many people walk straight past.
06 How the trip is put together
Five to seven days based in Naples is enough and no car is needed: the local railway runs along the skirt of Vesuvius and stops at the sites. A long morning for Herculaneum, a full day for Pompeii with a booked ticket, and the rest for the smaller sites.
Set aside half a day for Torre Annunziata, which belongs to the same World Heritage inscription and which almost nobody includes, and another half for the National Archaeological Museum in Naples, where much of what was taken from the two towns is kept. Seeing the objects after seeing the houses puts the trip in order.
What makes this trip different is not avoiding a queue. It is that at Herculaneum you see things that do not exist at Pompeii: a wooden door in its frame, a roof beam, a shelf. The eruption was the same; what changed was how the material arrived, and that technical difference is what decides what you can look at two thousand years later.
