1. The Baptistery of San Giovanni, also known as the Battistero di San Giovanni, is a small Baptistery located in the city of Siena, Italy. It is one of the most important religious and architectural landmarks in the city.

The Baptistery was constructed in the 14th century and is famous for its beautiful Gothic architecture. It has a hexagonal shape and features intricate sculptures and decorative details both on its exterior and interior. The facade of the Baptistery is adorned with ornamental reliefs depicting biblical scenes, angels, and saints.

Inside the Baptistery, visitors can admire the stunning baptismal font, which was created by the sculptor Jacopo della Quercia in the early 15th century. The font is made of bronze and features exquisite details, including scenes from the life of John the Baptist.

One interesting fact about the Baptistery of San Giovanni is that it is closely associated with the famous Siena Cathedral (Duomo di Siena), as it was originally intended to be the main entrance to the Cathedral. However, due to financial constraints, the Cathedral was never fully completed, and the Baptistery remained a separate structure.

2. The working hours of the Baptistery of San Giovanni may vary, so it is recommended to check the official website or contact them directly for the most up-to-date information. As of November 2021, there is no specific phone number available for the Baptistery, but inquiries can be made through the Siena Cathedral website.

3. The ticket information and transportation options may also vary, so it is best to consult the official website or contact the Siena Cathedral for accurate and current details. Generally, the Baptistery can be visited with a combined ticket that includes the Cathedral, the Piccolomini Library, the Crypt, and the Museum. The ticket prices are typically affordable, and discounts are often available for children, students, and seniors.

As for transportation, Siena is a well-connected city in Tuscany and can be reached by various means. If traveling by car, there are several parking areas available in the city. Additionally, Siena is accessible by public transportation, including buses and trains. The Baptistery of San Giovanni is located in the center of the city, near the Siena Cathedral, making it easily accessible on foot.