A group of artists including Koloman Moser, Othmar Schimkowitz, Jože Plečnik, and others, under the direction of architect Otto Wagner, decorated two apartment buildings Wagner designed; the Linke Wienzeile Buildings in 1898–1899. The building at Linke Wienzeile 40 is known as "Majolikahaus" or Majolica House. Its facade is entirely covered with majolica, or colorful fired clay tiles in floral designs. The Art Nouveau ornaments of its facade was done by his student . The other building, "Linke Wienzeile 38", is known as "House with medallions" because of its decor of gilded stucco medallions by Wagner's student and frequent collaborator, Koloman Moser. The most ornate earlier decoration was removed but later restored.