The Baptistery of San Giovanni is characterized by its octagonal structure.
The Florence Baptistery, or Battistero di San Giovanni, is a minor basilica located in the center of Florence.
The Siena Baptistery of San Giovanni is an exquisite example of Italian Gothic architecture.
The Parma Baptistery is an octagonal religious building made from pink Verona marble.
The Cremona Baptistery is an octagonal Romanesque building adjacent to the Cathedral of Cremona.
The Arian Baptistery is a UNESCO World Heritage Site located in Ravenna, Italy.