This is the building that serves as the location of the National Assembly of the Republic of Korea, the legislative branch of the South Korean national government. It is located in Seoul.

The Cheongwadae or the Blue House is the executive office and official residence of the President of South Korea and located in Seoul. The Korean name literally translates to "pavilion of blue tiles." The Blue House is in fact a complex of buildings, built largely in the traditional Korean architectural style with some modern elements.

This Government Complex number 3, located in Daejeon, was built in 1993 to give an impact of balanced development across the nation. It is is a set of four buildings holding several offices for the national government of South Korea including Korea Customs Service, Cultural Heritage Administration, Korean Intellectual Property Office (KIPO), Small and Medium Business Administration, and Military Manpower Administration (Source: Wikipedia).

Seoul Metropolitan Government is the administrative organization of Seoul. It deals with administrative affairs as the capital city of South Korea, so it is more centralized than that of most other cities with the city government being responsible for public education, correctional institutions, libraries, public safety, recreational facilities, sanitation, water supply, and welfare services (Source: Wikipedia).

This is a major railway station in Seoul that serves about 300,000 passengers a day (as of 2011).

This is the first port of Korea that opened in 1876. It is also the number one port in Korea in terms of size and service capability. As of 2010, it processed about 14 million TEU (the cargo capacity of a standard inter-modal container), and ranked the fifth among container ports in the world.

This is the largest airport in South Korea, the primary airport serving the Seoul national capital area, and one of the largest and busiest airports in the world. For seven years in a row (2005–2012), it was rated the best airport worldwide by Airports Council International. It is the world's fourth busiest airport by cargo traffic, and the world's eighth busiest airport in terms of international passengers in 2010.

Constructed in 1970, this is the second oldest and most heavily traveled expressway in South Korea, connecting Seoul to Busan, the second largest city in Korea through several major cities with more than a million populations. It has the route number 1, signifying its role as South Korea's most important expressway. The entire length from Seoul to Busan is 260 miles. As of 2010, about 30 million cars daily used this expressway (Source: Wikipedia).

Nine subway lines are currently operating in the Seoul Metropolitan Area. The total length of these lines are about 200 miles, similar to New York City Subway. About four million passengers daily use this Seoul subway system as of 2010.

The 1988 Seoul Summer Olympics was the second summer Olympic Games to be held in Asia. The Seoul Olympic Stadium is the main stadium built for the 1988 Summer Olympics and the 10th Asian Games in 1986. The lines of the stadium's profile imitate the elegant curves of a Korean Joseon Dynasty porcelain vase. Spectator seats are distributed on two tiers, totally covered. Initially built with a capacity of approximately 100,000 (Source: Wikipedia).

North Korea has constructed several secret tunnels that can allow North Korean Army to secretly invade South Korea. The first secret tunnel was found in 1974 and total four secret tunnels have been found including the fourth secret tunnel found in 1990.

In the middle of Korean peninsula, the military demarcation line (MDL) was drawn in 1953 when the Korean War ceased. Both South and North Koreas have the Demilitarized Zone (DMZ) for 2 km areas from the MDL. Wire fences are established and guarded by solders at the end of DMZ on both sides.