1. Piazza del Plebiscito is the largest square in Naples, Italy, with an area of about 25,000 square meters. It was named after the popular vote (plebiscite) in 1860 that brought about the annexation of Naples to the Kingdom of Italy. The square is surrounded by some of Naples’ most important buildings, such as the Royal Palace, the Basilica of San Francesco di Paola, and the Palazzo Salerno. The large open space of the square is often used for concerts, festivals, and other public events.

2. Piazza del Plebiscito is open 24 hours a day and is free to the public. There is no phone number for the square itself, but the nearby tourist office can provide information about the square and other attractions in Naples. Their phone number is +39 081 402394.

3. There is no admission fee to enter Piazza del Plebiscito. The square is located in the heart of Naples and is easily accessible by public transportation, including metro Line 1 and various bus routes. Visitors can also reach the square on foot or by taxi. Parking may be difficult in the area, so it’s recommended to use public transportation whenever possible.