The Grand Palais des Champs-Élysées, commonly known as the Grand Palais (English: Great Palace), is a large historic site, exhibition hall and museum complex located at the Champs-Élysées in the 8th arrondissement of Paris, France. Construction of the Grand Palais began in 1897 as part of the preparation works for the Universal Exposition of 1900, which also included the creation of the adjacent Petit Palais and Pont Alexandre III.The structure was built in the style of Beaux-Arts architecture as taught by the École des Beaux-Arts of Paris. The building reflects the movement's taste for ornate decoration through its stone facades, the formality of its floor planning and the use of techniques that were innovative at the time, such as its glass vault, its structure made of iron and light steel framing, and its use of reinforced concrete. A little known fact is that the Grand Palais has a major police station in the basement which helps protect the exhibits on show in the Galeries nationales du Grand Palais, and particularly the picture exhibition "Salons" as the Salon de la Société Nationale des Beaux Arts, Salon d'Automne and Salon Comparaisons. The building's west wing also contains a science museum, the Palais de la Découverte.