With development of industry cities began to be built. Cities were surrounded a fortress and ditch with water, which a bridge went down through. Riding into in a city is possible it was through gates. In cities also in one-story houses were the beginning built.Then, with development of industry, two-storeyed houses began to appear on a few apartments, on changing which the three-storeyed came, so-called "stalinki", which were built in the epoch of stalinizm. After "stalinok" 5 storeyed khruschevki were built by record rates. And then began to build nine-storeyed houses. The floor of dwelling-houses with every year was increased. We look after and now, that mainly built house in no less than twenty floors high.