Because of the corona virus doing the rounds the Korean Stamp Museum is, like so many other such institutes, closed at the moment. However, just a few days ago KoreaPost issued a link on its website to a complete virtual tour of the Korean Stamp Museum. When clicked one starts just outside the museum, underground, near the central post office.
The tour then goes through the entrance and the museum desk and then into the exhibition areas:

Moving through the area is done by clicking on the white buttons on the floor. The orange versions of the Stamp Museum logo are clickable too, they show more information (in Korean and English) about parts of the exhibition.
Next the virtual tour shows all other areas of the museum, here are two of such areas:


The post blog also showed some pictures of the museum being prepared for a future re-opening:





Earlier on, in 2019, the museum posted photos of the museum. Here are those photos to get an idea of the museum:







Let’s hope things will get back to “normal” soon, so we can all enjoy visiting museums such as the Korean Stamp Museum again. I have been there myself, it is worth the visit when in Seoul. And as a bonus to visiting the museum: in the same underground area almost a dozen stamp shops can be found! Great to stock up for your Korean stamp collection.