In 2026, buying Pompeii tickets in advance is absolutely essential and highly recommended. The Archaeological Park has implemented a strict daily limit of 20,000 visitors to protect the fragile ruins, and many time slots sell out weeks in advance during the peak summer months. Additionally, all tickets are now "nominative," meaning they are linked to your ID, so the process at the gate can be much slower than in years past. By purchasing online via the official portal (Vivaticket), you receive a PDF or digital ticket with a QR code that allows you to bypass the long "ticket-buying" lines—which can be over an hour long in the hot Italian sun—and head directly to the turnstiles. For those wanting a deeper experience, booking the "Pompei Express" or "Pompei +" in advance ensures you have access to the newer, restricted suburban villas like the Villa of the Mysteries. Essentially, pre-booking isn't just about saving time; in 2026, it is the only way to guarantee you will actually get to step inside the world's most famous ancient city on your chosen day.