1. Castel dell’Ovo is a castle located on the Gulf of Naples in the city of Naples, Italy. It was originally built as a fort in the 6th century by the Eastern Roman Emperor, as a means of defending the city from raids. The castle was later expanded and rebuilt under the rule of the Angevin and Aragonese dynasties. Today, the castle is a popular tourist attraction and is known for its stunning views of the bay. It also houses a museum showcasing the history of the castle and the city of Naples.

2. The castle is open to visitors daily, from 9:00 am to 7:00 pm. The phone number for inquiries is +39 081 795 5802.

3. Admission to the castle is free. Visitors can reach the castle by public transport, including a bus or metro ride followed by a short walk. The closest metro station is Line 1’s Municipio, while the closest bus stop is either Via Partenope/Castel dell’Ovo or Riviera di Chiaia.