Underground Florence: A Journey to the City's Hidden and Secret Places

Underground Florence is the gateway to a hidden or simply lesser-known world.

Rich in passages and doors that lead us to discover stories and narratives, characters and icons that reveal other insights into the city’s history.

This mini guide takes us through Florence’s secret passages for new and incredible experiences.

Florence’s Underground Tours: Palazzo Vecchio and the Duomo

Among Florence’s hidden passageways, some are truly special, touching famous sites, monuments, and historic locations.

Just like the Palazzo Vecchio and the Duomo.

Beneath Palazzo Vecchio are the excavations of the Roman Theater of Florentia.

These are remains of great archaeological value, dating back to Roman times.

We can visit the area located directly beneath the Dogana courtyard.

Through an archaeological tour, we can admire the sandstone foundations, the underground corridors used for circulation, and the sections of walls that bordered the steps.

Beneath the Duomo is the Crypt of Santa Reparata, an ancient basilica that once stood on the site of the current Cathedral of Santa Maria del Fiore.

From the Duomo, we ascend an internal staircase that leads beneath the floor, to an archaeological trail that allows us to admire the remains of the Roman domus, the early Christian mosaic with geometric motifs and a large central peacock, an epigraph with the names of the mosaics’ donors, tombs, and much more.

Hidden Crypts and Churches in the Historic Center

In addition to the crypt of Santa Reparata, there are other crypts in Florence, hidden underground, worth exploring:

Crypt of the Church of San Miniato al Monte: this is the oldest part of the Romanesque basilica, dating back to the 11th century. Inside, we admire frescoes by Taddeo Gaddi, columns and capitals, and the bones of Saint Miniato;
Crypt of Santa Maria Maggiore: located beneath the high altar. We can see structures from the apse of the ancient church;
Church of San Paolino: dating back to the 4th century, it is small, close to the city center, quiet, and rarely visited by tourists.

Tours and guided visits to discover secret Florence

The cradle of the Renaissance offers numerous opportunities for exploration, even in lesser-known places.

Let’s discover the main underground guided tours in Florence:

Secret Florence Tours: offers numerous tours, many private, available in various languages. These include “The Secrets of the Medici” and “Esoteric and Occult Secrets.” These tours lead us through secret passages and hidden alleys;
Opera Duomo: with exclusive guided tours in Italian and English. They also include the Basilica of Santa Reparata, the dome, the clock mechanism, the sacristy, and the terraces;
Palazzo Vecchio – Secret Itineraries: a visit lasting approximately 1.5 hours through secret passages, hidden rooms, an alchemist’s studio, and escape routes, which also allow you to learn anecdotes about the Medici family;
Secret Oltrarno: a tour lasting approximately 1.5 hours, with an itinerary from San Frediano to Santo Spirito, allowing us to discover the stories, legends, and curiosities of hidden and less-visited places;
Secret Florence (Artemide Firenze): a tour lasting approximately 1.5 hours that takes us through the city’s historic center, discovering places as well as traditions, customs, characters, and sayings;
Hidden Florence (Art and Museums): a tour lasting approximately 90 minutes with a licensed guide, to be done at sunset, that visits lesser-known locations that immerse us in a magical atmosphere;
Discovery Tour of Florence: a tour lasting approximately 2.5 hours that allows us to discover lesser-known stories surrounding locations such as the Baptistery, the Duomo, Piazza della Signoria, palaces, the medieval quarter, and statues.

Underground and Secret Places in Florence: Practical Information and Tips

Here is some useful information for those who want to visit Florence’s secret places:

Crypt of Santa Reparata:
- Access is inside the Duomo, from the right side of the nave;
  Opening hours are the same as those for the Duomo complex;
- Access is already included in the various Duomo passes: Brunelleschi, Giotto, Ghiberti;
- Useful information: We recommend visiting in the morning to avoid queues and crowds;

Excavations of the Roman Theatre of Florentia:
- Access is from the Palazzo Vecchio Museum;
- Check opening hours and days on the Musei Civici Fiorentini website;
- Useful information: To discover and admire the Medici’s private rooms and hidden passageways, combine the visit with the “Secret Itineraries of Palazzo Vecchio” tour;

Crypt of San Miniato al Monte:
- Access is from the Basilica of San Miniato al Monte, above Piazzale Michelangelo;
- Opening hours mirror those of the church, morning and afternoon.
- We recommend visiting at sunset to admire the crypt and then enjoy the sunsets over the city.

Santa Maria Maggiore:
- Access is from the Duomo, beneath the high altar.
- We recommend choosing this route to enjoy one of the city’s hidden beauties and to relax, as the site is not particularly crowded.

Here are some practical tips for visiting Florence’s hidden gems:

Reservations:
- Duomo and complex: purchase online. Passes are valid for three days.
- Palazzo Vecchio Secret Itineraries: Reservations with fixed times are required.

Clothing:
- Comfortable shoes are recommended, as the tours include narrow stairs and uneven floors.
- In churches and inside the crypts, shoulders must be covered.

When to go:
- Early morning or late afternoon are recommended to avoid particularly large tourist crowds.
- In summer: the underground areas are cooler. This is why we can visit them even during the hottest hours of the day.

Guided tours:
- It’s essential to choose a tour accompanied by an expert to fully appreciate the itinerary, especially the Roman Theater or the Secret Itineraries of Palazzo Vecchio.