In the following years, Olbrich executed diverse architectural commissions and experimented in applied arts and design. He designed pottery, furniture, book bindings, and musical instruments. His courtyard and interiors at the St. Louis World's Fair won the highest prize at the exhibition. At the time, the "St. Louis Post-Dispatch" wrote of his pavilion, "The interior decorators of the United States are now talking about the Olbrich Pavilion. It is already indicated as one of the things at the World's Fair which will leave a permanent mark upon American life." He was subsequently appointed corresponding member of the American Institute of Architects. His architectural works, especially his exhibition buildings for the Vienna and Darmstadt Secessions, had a strong influence on the development of the Art Nouveau style.