Katajanokka, Kruunuhaka and Eira are representative districts of new art buildings. If you like this style of architecture, you might as well go there for a walk and enjoy it. Isto Rantanen, a local chimney sweeper, is an expert in new art architecture in Helsinki. Although he has been up and down on the roofs of Helsinki buildings for more than 30 years, he is deeply moved by the old buildings.