Harmonising the desire for modernisation with an exuberance of artistic expression, possible due to the technical innovations from the end of the 19th century, Art Nouveau has left its mark on most European cities and beyond. Diverse through its many instances, each of them specific to the cultural areas in which they had manifested, but homogeneous through the coherence of its artistic principles and message, this style represented a turning point in the history of art and architecture. At a European level, we are talking about a first moment of architectural synchronisation from Great Britain to the borders of the Ottoman Empire. In the Danube Region, under the influence of Viennese Secession, this movement became a representative feature of many cities that were part, at the end of the 19th century, of Austria-Hungary, having similar characteristics from an architectural and urban planning point of view.
Keywords: transnational project, built heritage, Art Nouveau, Danube Region