1. The Basilica of Santo Stefano, also known as the Basilica di Santo Stefano, is a complex of religious buildings located in Bologna, Italy. It is one of the most important architectural and historical sites in the city.

- The complex includes several churches and chapels, all interconnected by a series of courtyards and small streets. It is often referred to as a \"city within a city\" due to its vast size and layout.

- The original structure dates back to the 5th century, but it has undergone many renovations and additions over the centuries. The complex is named after the first Christian martyr, St. Stephen.

- The main church, known as the Basilica del Santo Sepolcro, is a place of great significance for pilgrims. It is designed to resemble the Basilica of the Holy Sepulchre in Jerusalem and houses a replica of the Holy Sepulchre.

- One of the most unique features of the complex is the courtyard known as \"Corte Isolani.\" It is a picturesque square surrounded by medieval buildings and is a popular spot for locals and visitors.

2. The working hours of the Basilica of Santo Stefano can vary, so it is best to check the official website or contact the basilica for the most up-to-date information. Unfortunately, we don’t have the specific phone number for the basilica available at the moment.

3. Admission to the Basilica of Santo Stefano is generally free. However, there may be additional fees for certain exhibitions or guided tours within the complex.

Transportation to the basilica is relatively easy, as it is located in the city center of Bologna. Visitors can either take a bus or walk from the main train station or other parts of the city. Bologna is well-connected by train and has an international airport for those arriving by air.