Architectural contributions from Germany include the Carolingian and Ottonian styles, which were precursors of Romanesque. Brick Gothic is a distinctive medieval style that evolved in Germany. Also in Renaissance and Baroque art, regional and typically German elements evolved (e.g. Weser Renaissance). Vernacular architecture in Germany is often identified by its timber framing ("Fachwerk") traditions and varies across regions, and among carpentry styles. When industrialisation spread across Europe, Classicism and a distinctive style of historism developed in Germany, sometimes referred to as "Gründerzeit style". Expressionist architecture developed in the 1910s in Germany and influenced Art Deco and other modern styles. Germany was particularly important in the early modernist movement: it is the home of Werkbund initiated by Hermann Muthesius (New Objectivity), and of the Bauhaus movement founded by Walter Gropius. Ludwig Mies van der Rohe became one of the world's most renowned architects in the second half of the 20th century; he conceived of the glass façade skyscraper. Renowned contemporary architects and offices include Pritzker Prize winners Gottfried Böhm and Frei Otto.