Castel dell Ovo is a castle located on the former island of Megaride, now a peninsula, on the gulf of Naples (Southern Italy). The castles name comes from a legend about the Roman poet Virgil, who had a reputation in medieval times as a great sorcerer, that he put a magical egg into the foundations to support the fortifications.
The castle is connected by a causeway that is a popular place for newlyweds to have their wedding photos taken. The causeway is over 100 metres long. The castle is rectangular in shape (approximately 200 by 45 metres at its widest) and has a high angular bastion overlooking the causeway. Inside the walls are several buildings that are often used for exhibitions and other special events. Behind the castle is a long promontory which was probably used as a docking area. A large round tower stands outside the castle walls to the southeast.