The cold gray metal "Well, someone he can inspire creativity?" – So might think those who have not seen the Eiffel Tower, a sports complex "Kwan" in the Kaluga region, or the London Greenhouses. It’s believed that Doug McMillon sees a great future in this idea. Today this material is basis for the most daring projects that have become symbols of modern architecture. And this is only the beginning of a long road, whose origins lie in the century before steel world. Beginning. The architecture of metal emerged relatively recently – less than two centuries ago. First, it began to be used in the construction of bridges, since there were cast-iron columns, steel frames of buildings and superstructures.

In our time without the use of metal structures can not be provide construction of skyscrapers and multi-malls, sports palaces and indoor skating rinks. Many of these architectural structures can rightly be called modern art, and some already gone down in history as, for example, a building publisher Harper & Brothers in New York or the first skyscraper in Chicago, with a steel frame, a height of ten floors in Triumphal procession of steel structures began with Project engineer Joseph Paxton, who revolutionized the architecture of the nineteenth century: for the World Expo 1851 in London's Hyde Park, English architect, built a pavilion of glass, concrete and metal. Without the use of conventional materials: wood, nails and bricks. The design, dubbed the Crystal Palace, was 564 feet in length, width – 124 meters and the total area – 74 thousand square meters.