Art Nouveau was an international style movement between the late 19th and early 20th centuries known for depictions of flowers, vines, and other organic forms. Two key figures in Barcelona, Antoni Gaudi and Josep Jujol, produced beautiful ceramic mosaics for Guell Park using techniques like trencadis that incorporated broken tiles and objects. Another important artist was Gustav Klimt of Austria, known for his use of gold and silver and as a major exponent of Art Nouveau. The style influenced jewelry design, posters, glasswork, and architecture across Europe and America.