The Royal Mosque at Isfahan: In 1598, King Abbas planned an immense urban project. His royal Mosque captured the unprecedented wealth of an art of living, the king's power, and the talent of architect Ali Akbar Esfahani. The Pyramid of Pharoah Djoser at Saqqara: The Djoser pyramid, the work of legendary architect Imhotep, is the oldest in Egypt, and bears witness to the first steps of architecture as a scholarly pursuit, as opposed to simple construction. It was a revolution in three thousand years BC, born out of a desire to perpetuate tradition. The Philharmonie Luxembourg: The elliptical shaped Philharmonie, with its filter of white columns and colourful cliffs, houses the Grand Auditorium in the manner of a jewel in its display case. It is one of the most beautiful buildings by architect Christian de Portzamparc. The Menier Chocolate Factory: The Menier factory at Noisiel, outside Paris, was the largest chocolate factory in the world between 1870 and 1914. Throughout its three successive states, it tells the story of a veritable laboratory of industrial architecture in the second half of the 19th century. The SAS Royal Hotel: The SAS Royal Hotel tower marked Denmark's entry into post-war modernity. It is a major work that combines functionalism, simplicity and elegance, and in which everything, from the ashtrays to the building's volumes, were created and designed by Arne Jacobsen. Saint Pancras Station: In the 19th century in London, the Midland Company had Saint Pancras and a luxury hotel built. Engineer W.H. Barlow carried out a major feat, creating a 73 metre single-span hall, with no columns or pillars. As for architect Sir George Gilbert Scott, his Midland Grand Hotel was a neo-gothic manifesto.