Seoul

The Council on Tall Buildings and Urban Habitat has released its annual report on the state of skyscraper construction. Worldwide, 2012 witnessed the completion of 66 buildings taller than 200 meters, including the second tallest in the world.
Jan 13, 2013   The Council on Tall Buildings and Urban Habitat Studies
Being developed on 1500 acres of Incheon's waterfront, Songdo is a completely planned city harnessing the latest innovations in green technology and planning doctrine aimed at creating a sustainable, self contained 'city of the future.'
Jul 16, 2010   ABC News
South Korean government officials are increasingly focusing on green projects to improve their cities' sustainability -- and create legacies for politicians.
Mar 29, 2010   The New York Times