The modernists wished to recreate the world through new ideas and contemporary techniques to structurally design and deliver unprecedented buildings. During the 20th century, architecture took a turning point and went from a total work of art to industrialization. Technological progress due to the machine age brought new materials and new tools. Ludwig Mies van der Rohe was one of many architects of this period to not only imagine new structural systems, but was able to apply modern style concepts to numerous projects throughout his career. Through the design of the New National Gallery, Mies van der Rohe achieved an unprecedented modern architectural language with particular attention to light, transparency and the organization of space to utilize all structural qualities as well as the relationship with nature through design from the inside out .Ludwig Mies van der Rohe, later called Mies, was born in the German city of Aix La Chapelle. At a young age he gained crucial experience in the tradition and skills of the craftsman, then, after commissioning his first project as an independent architect, Mies “executed in the then popular traditional style of steep roofs, gables and dormers with precision and careful attention to the details.” Subsequently, he had the opportunity to train with Peter Behrens, where Mies learned to appreciate order and precise detail, as well as new ideas about proportions, simplicity and the use of steel and glass. Mies acquired from Behrens a romantic language that derives “from his domestic architecture from Karl Friedrich Schinkel. It was characterized by a unique sense of rhythm and proportion, a purity of form, and a nobility that derived from the practice of placing structures on large platforms or plinths. T...... middle of paper ......a long U-turn from the austere Schinkel-esque neoclassicism of his early years, through the avant-garde period influenced by De Stijl and the expressionist ideas of the 1920s , to return to the sober values ​​of Classicism after around 1945. Mies van der Rohe developed his ideas from the basic principles of construction to present a building that expressed a lucid and simple structure. Modernism as a new contemporary style was seen as pure geometric forms with distinct structural systems, and a relationship with the new technological advances brought about by the industrial revolution. Throughout his career, Mies van der Rohe sought to provide clarity and evolve his architecture to convert the technical solution into an architectural expression. He exposed the structure to exploit all its expressive effects, which led Mies van der Rohe to become one of the four Masters of Modern Architecture