Changwon is the first of South Korea's few planned cities. Developed in the 1970s it was designed to be the new capital for Gyeongsangnam-do and an alternative capital for the country should Seoul be invaded. The city is surrounded by mountains which provides protection. A missile defense station sits on top of the southern mountain range. Changwon boasts of the longest straight road in the nation (Changwon Main Road - ''Changwondae-no'') which is over 12Km long. If necessary the road can be used as a landing runway. The city is home to many high-technology and machine industries, including LG, Samsung, GM Daewoo, and their employees in a high-quality urban space. Changwon Main Road divides the town with the industries mostly being on the western side and the urban environment mostly being on the eastern side. http://wikitravel.org/en/Changwon