Paris Métro entrances by Hector Guimard

Between 1900 and 1913, Hector Guimard was responsible for the first generation of entrances to the underground stations of the Paris Métro. His Art Nouveau designs in cast iron and glass dating mostly to 1900, and the associated lettering that he also designed, created what became known as the Métro style and popularized Art Nouveau. However, arbiters of style were scandalized and the public was also less enamored of his more elaborate entrances. In 1904 his design for the Opéra station at Place de l'Opéra was rejected and his association with the Métro ended; many of his station entrances have been demolished, including all three of the pavilion type. Those that remain are now all protected historical monuments, one has been reconstituted, and some originals and replicas also survive outside France.