The Baptistery of St. John stands opposite Pisa Cathedral in the Piazza dei Miracoli, just a short walk from the Leaning Tower. The largest baptistery in Italy, it is a striking cylinder of pale stone topped by a dome. Its rounded Romanesque lower level gives way to Gothic gables and pinnacles above, reflecting the changing tastes of the long period in which it was built.
Construction began in 1152 under the architect Diotisalvi and continued for more than two centuries. Nicola and Giovanni Pisano later contributed to its Gothic decoration. Inside, Nicola Pisano’s hexagonal pulpit, completed in 1260, is a landmark of medieval sculpture, with carved scenes that anticipate the naturalism of the Renaissance. The octagonal baptismal font sits at the centre of the building’s restrained, spacious interior.
The baptistery is also renowned for its acoustics: when a custodian demonstrates them, a few sung notes linger and overlap beneath the dome. Climb to the upper gallery for a view down into the interior and across the piazza towards the cathedral and tower.
Visit early or later in the day for a better chance of avoiding the busiest tour groups, and ask about the timing of acoustic demonstrations when you arrive. Tickets are sold through the monument’s ticket offices and online; combined tickets can be useful if you plan to visit several sites. Pisa Centrale station is roughly a 25- to 30-minute walk away, and modest dress is appropriate at this religious site.