in 1814, they supposedly found Altdorfer's The Battle of Alexander at Issus hanging in the Emperor's bathroom. It was at Saint-Cloud once again, in Monsieur's Galerie d'Apollon, that Napoléon III invested himself as Emperor of the French on 1 December 1852. During the Second Empire, Napoléon III and empress Eugénie held court at Saint-Cloud in the spring and the autumn. Napoléon III had the orangery demolished in 1862, and Eugénie transformed the bedroom of Madame into a salon in the Louis XVI style. The castle was used during much of the nineteenth century to welcome members of European royal families. For example, Queen Victoria and Prince Albert stayed at Saint Cloud when they came to visit Paris for the first Exposition Universelle (1855). At Saint-Cloud, Napoléon III declared war on Prussia on 28 July 1870. The heights dominating Paris were occupied by the Prussians during the siege of Paris, who shelled Paris from the grounds of the château. Counter-fire from the French hit the building, and it caught fire and burned out on 13 October 1870. Much of its contents had been removed by Eugénie after war was declared. The standing roofless walls were finally razed in 1891. The pediment of the château's right wing, one of the preserved parts of the building, was bought by Ferdinand I of Bulgaria and integrated in his palace Euxinograd on the Black Sea coast. Today, only a few outbuildings and its park of 460 hectares remain, constituting the Domaine national de Saint-Cloud. It includes the garden à la française designed by Le Nôtre, Marie Antoinette's flower garden (where roses for the French state are grown), a garden à l'anglaise from the 1820s (the Trocadéro garden), ten fountains, and a viewpoint of Paris known as "la lanterne", because a lantern was lit there when Napoléon I was in residence. The Pavillon de Breteuil in the park has been the home of the General Conference on Weights and Measures since 1875. 20th century The sculpture group France crowning Art and Industry was installed in the lower part of the park in 1900. Many thousands of trees in the park were knocked down or badly damaged in a storm on 26 December 1999, but restoration work continues. 21st century The park has been the venue for the Rock en Seine festival since 2003. Rebuilding the Château de Saint-Cloud Since December 2006 there has been a movement