In architecture, hyperbolas and parabolas in windows, arches and doors are common, and decorative mouldings 'grow' into plant-derived forms. Like most design styles, Art Nouveau sought to harmonise its forms. The text above the Paris Metro entrance follows the qualities of the rest of the iron work in the structure.
Art Nouveau in architecture and interior design eschewed the eclectic revival styles of the Victorian era. Though Art Nouveau designers selected and 'modernized' some of the more abstract elements of Rococo style, such as flame and shell textures, they also advocated the use of highly stylized organic forms as a source of inspiration, expanding the 'natural' repertoire to embrace seaweed, grasses, and insects.