Metapolis

Seodongtan Station is a station on Line 1 of the Seoul Metropolitan Subway. It serves the cities of Hwaseong and Osan in Gyeonggi-do, South Korea. The station takes its name (literally West Dongtan) from its local area of the city of Hwaseong, but straddles the border with Osan, in which it is mostly located and its postal address lies.

The Battle of Osan (Korean: 오산 전투) was the first engagement between the United States and North Korea during the Korean War. On July 5, 1950, Task Force Smith, an American task force of 540 infantry supported by an artillery battery, was moved to Osan, south of Seoul, the capital of South Korea, and was ordered to fight as a rearguard to delay the advancing North Korean forces while more US troops arrived to form a stronger defensive line to the south. The task force lacked both anti-tank guns and effective infantry anti-tank weapons and had been equipped with obsolete 2.36-inch (60 mm) rocket launchers and a few 57 mm recoilless rifles. Aside from a limited number of HEAT shells for the unit's 105 mm howitzers, crew-served weapons that could defeat T-34/85 tanks from the Soviet Union had not yet been distributed to the US Army forces in South Korea. A North Korean tank column equipped with ex-Soviet T-34/85 tanks overran the task force in the first encounter and continued its advance south. After the North Korean tank column had breached US lines, the task force opened fire on a force of some 5,000 North Korean infantry that were approaching its position, which held up their advance. North Korean troops eventually flanked and overwhelmed the US positions, and the rest of the task force retreated in disorder.

Dongtan is a station on the Suseo high-speed railway. and Dongtan Station can go to Busan, Daegu, and Gwangju by SRT. This station is in the Yulhyeon Tunnel.

Sema Station is a station on Seoul Subway Line 1 in the city of Osan, South Korea. Services on the Gyeongbu Line also pass through this station.

Byeongjeom Station is a station on Line 1 of the Seoul Metropolitan Subway. It is the only train station serving the city of Hwaseong. It is the southern terminal station for approximately half of the subway trains on this line who then carry on to the nearby depot, one of the five depots on Line 1, with the remainder continuing to Cheonan or Sinchang Station. Many centers of higher education, including Hanshin University, Suwon Science College and the University of Suwon, are located nearby, and shuttle buses run regularly between there and the campuses. In addition, Yungneung (융릉, 隆陵) and Geonneung (건릉, 健陵) – the royal tombs of Crown Prince Sado and his son King Jeongjo, the 22nd ruler of the Joseon Dynasty – lie to the west of the station.

Osan University Station is a station on Seoul Subway Line 1. Osan University, despite the name of the station, is about a mile away from this station, and is closer to the next station on Line 1.

Kyung Hee Astronomical Observatory is an astronomical observatory owned and operated by Kyung Hee University. It is located in Giheung-gu, Yongin, South Korea. It was the first observatory in the nation to discover a variable star, later named the Kyung Hee Star.

Mangpo Station is a subway station of the Suin–Bundang Line, the commuter subway line of Korail, the national railway of South Korea.

Dongtan (Korean: 동탄) is a township in Hwaseong, Gyeonggi, South Korea, with many shops and restaurants. There are also 4 residential skyscrapers of 70-80 floors. They are collectively called Metapolis and contain a shopping mall. Dongtan also has the Suseo–Pyeongtaek high-speed railway (SRT) that goes from Suseo station to Jije station. The subway is 52.3 km (32.5 mi) long as the third longest in the world. It also has the longest tunnel for a subway that goes at a speed of 300 km/h (190 mph). Dongtan Station will be the terminus of the first line of the GTX higher-speed train which enters into service in March 2024.

Yeongtong Station is a subway station of the Suin–Bundang Line, the commuter subway line of Korail, the national railway of South Korea. The station was opened in December 2012, as part of the Mangpo extension of the Bundang Line. It is close to the Suwon Immigration office. Near exit #2 of Yeongtong Station, there is a large Homeplus. Nearby is the Suwon Immigration office.

Doksan Fortress (Hangul: 독산성, Hanja: 禿山城) is a Korean hill fort located in Osan, South Korea. It is known for the Siege of Doksan in 1593, where the Japanese failed to defeat Gwon Yul during the Imjin War. Located within the fort are the Bujek Buddhist Temple and the Semadae, a monument to Gwon Yul's victory. The site is designated as a Historic Site of South Korea. The annual Doksanseong Culture and Art Festival takes place near the fort each September.

Muk-dong is a dong, neighbourhood of Jungnang-gu in Seoul, South Korea.