Luke P.
Google
Dorasan Station was intended to connect the South Korean rail network to North Korea's and hopefully the rest of the Asia rail network. The station was built for international use, but because of the ongoing tensions, the huge station is mostly empty, save for some memorabilia.
You can take the DMZ train to the station or visit it as part of a tour, but there is not much to see here other than the railway tracks that go into North Korea. The DMZ train only runs once per day and you have to take it from a South Korean station.
If you're visiting as part of a tour, you will need to pay 1000 won to access the platform with the tracks. Strongly recommend you to do that as there is not much to see in the station itself.
Perhaps in the future you can take a train from here to Pyongyang.