Developed using open data from local government sources, built: LA is a mapping tool that displays the age of every building in the county. Much of the area's built environment is surprisingly old.
Jun 19, 2015   CityLab
Single-story, tiled-roof houses called hanok used to cover the footprint of Seoul, now a city of skyscrapers and avant-garde architecture. Today many describe the hanok as "endangered,"and conflict has come to a head in the small district of Bukchon.
Dec 14, 2010   The New York Times
Isfahan is one of Iran's fastest growing cities. But it also has a distinct history -- one that is being threatened by the rapid pace of growth. Now, locals are trying to preserve the city's heritage.
Apr 5, 2009   Smithsonian