Castel dell'Ovo is a seafront castle in Naples, located on the former island of Megaride, now a peninsula, on the Gulf of Naples in Italy. The castle's name comes from a legend about the Roman poet Virgil, who had a reputation in the Middle Ages as a great sorcerer and predictor of the future. In the legend, Virgil put a magical egg into the foundations to support the fortifications. It remains there along with his bones, and had this egg been broken, the castle would have been destroyed and a series of disastrous events for Naples would have followed. The castle is rectangular in plan, approximately 200 by 45 metres at its widest, with a high bastion overlooking the causeway that connects it to the shore. The causeway is more than 100 metres long and a popular location for newlyweds to have their wedding photos taken. Several buildings are often used for exhibitions and other special events inside the castle walls. Behind the castle, there is a long promontory once probably used as a docking area. A large round tower stands outside the castle walls to the southeast.