Palace of Caserta. The Royal Palace of Caserta is a former royal residence in Caserta, southern Italy, constructed by the House of Bourbon-Two Sicilies as their main residence as kings of Naples. It is the largest palace erected in Europe during the 18th century. In 1997, the palace was designated a UNESCO World Heritage Site; its nomination described it as the swan song of the spectacular art of the Baroque, from which it adopted all the features needed to create the illusions of multidirectional space. In terms of volume, the Royal Palace of Caserta is the largest royal residence in the world with over 1 million m³ and covering an area of 47,000 m². The construction of the palace began in 1752 for Charles VII of Naples, who worked closely with his architect, Luigi Vanvitelli. When Charles saw Vanvitelli's grandly scaled model for Caserta, it filled him with emotion fit to tear his heart from his breast. In the end, he never slept a night at the Reggia, as he abdicated in 1759 to become King of Spain, and the project was carried to only partial completion for his third son and successor, Ferdinand IV of Naples. The political and social model for Vanvitelli's palace was Versailles, which, though strikingly different in its variety and disposition, solves similar problems of assembling and providing for king, court and government in a massive building with the social structure of a small city, confronting a baroque view of a highly subordinated nature, la nature forcee. This was part of the entire concept of the palace when it was first proposed by Mario Gioffredo sometime in 1750. According to Hersey, the proposal envisaged a palace that was a virtual city, housing not just the court and king but all the main political and cultural elites of the Kingdom of the Two Sicilies-university, museum, library, cabinet bureaus, military high commands, and so on. The population of Caserta Vecchia was moved 10 kilometers to provide a work force closer to the palace. A silk manufactory at San Leucio resort was disguised as a pavilion in the immense parkland. Another of the king's primary objects was to have a magnificent new royal court and administrative center for the kingdom in a location protected from sea attack, and distant from the revolt-prone and congested city of Naples. To provide the king with suitable protection, troop barracks were housed within the palace. The Royal Palace of Madrid, where Charles had grown up, which had been devised by Filippo Juvarra for Charles' father, Philip V of Spain, and Charlottenburg Palace provided models. A spacious octagonal vestibule seems to have been inspired by Basilica di Santa Maria della Salute in Venice, while the palatine chapel is most often compared to the Royal Chapel at Versailles. Vanvitelli died in 1773: the construction was continued by his son Carlo and then by other architects; but the elder Vanvitelli's original project, which included a vast pair of frontal wings similar to Bernini's wings at St. Peter's, was never finished. From 1923 to 1943 the palace was the location of the Accademia Aeronautica, the Italian Air Force Academy. From 1943, during the allied invasion the royal palace served as Allied Force Headquarters for the Supreme Allied Commander in the Mediterranean area; Sir Maitland Wilson and later Sir Harold Alexander. In April 1945 the palace was the site of the signing of terms of the unconditional surrender of German forces in Italy. The agreement covered between 600,000 and 900,000 soldiers along the Italian Front including troops in sections of Austria. The first Allied war crimes trial took place in the palace in 1945; German general Anton Dostler was sentenced to death and executed nearby, in Aversa. In the left hand arc behind the facade, a set of barracks were built. During World War II the soldiers of the US Fifth Army recovered here in a rest centre. In 1998, the palace was a filming location for Star Wars: Episode One-The Phantom Menace, specifically as the interior of the Theed City Naboo Palace. It was used as a location for four days after it had been closed to visitors. Scenes with explosions were filmed on replica sets in Leavesden Studios to avoid damaging the actual palace. The palace has 5 floors, 1,200 rooms, including two dozen state apartments, a large library, and a theatre modelled after the Teatro San Carlo of Naples. A monumental avenue that would run 20 kilometers between the palace and Naples was planned but never realized.