Victor Horta, a Belgian architect, is celebrated for his pioneering contributions to the Art Nouveau movement. His work in Brussels, Belgium, is renowned for its innovative use of iron, steel, and glass, creating organic and flowing designs that were ahead of their time. Notable examples of his architecture include the Hôtel Tassel, which is often considered the first Art Nouveau building, and the Horta Museum, formerly his own house, both of which are UNESCO World Heritage Sites. Horta's designs not only influenced the aesthetics of his era but also laid the groundwork for modern architectural principles.