When Finland became heavily urbanized in the 1960s and 1970s, the district of Pihlajamäki, for example, was built in Helsinki for new residents, where for the first time in Finland, precast concrete was used on a large scale. Pikku Huopalahti, built in the 1980s and 1990s, has tried to get rid of a one-size-fits-all grid pattern, which means that its look is very organic and its streets are not repeated in the same way. Itäkeskus in Eastern Helsinki was the first regional center in the 1980s. Efforts have also been made to protect Helsinki in the late 20th century, and many old buildings have been renovated. Modern architecture is represented, for example, by the Museum of Contemporary Art Kiasma, which consists of two straight and curved-walled parts, though this style strongly divided the opinions from the citizens. Next to Kiasma is the glass-walled Sanomatalo (1999).