but the engineering issues were taken into account, energy was stored through nature and through hamid ati, which was used in the buildings. and less energy that pastel is fuel, for example, it was used to create heat to create our head , while the body used natural materials. send copenhagen the capital to unesco for 2 months as the architecture capital of the world has introduced this work to develop sustainable urban solutions and to highlight the key role of architecture in urban planning and urban culture and to shape the identity of sustainable cities . many of the cities we know and love are built with bricks and here in denmark for 130 years, we have used the same size and shape of bricks and we have bricks that last 500 years. use the right mortar. you can separate the bricks from the walls again after a hundred years and build new buildings with them. unesco by choosing architectural capitals that every three years it is selected, it tries to put the indicators of sustainable urban development such as attention to original and native architecture, the use of useful materials and