With the research I did about heading up to Namsan Seoul Tower, I knew we would want to find the glass elevator "Namsan Oreumi" first so we didn't have to hike all the way up to Namsan ("south mountain") to get to the Seoul Tower cable cars and see all the pretty things up there. (I didn't want to hike up because it was really cold and I was a wimp, but many choose to hike up the mountains because the scenery was spectacular.)
From where we were (near Hoehyeong Underground Shoppnig and Namdaemun Market) I knew the easiest way for me to find the Namsan Oreumi elevator was to take Exit 6 at the Hoehyeong Station (subway).
Escalator at Exit 6 inside Hoehyeong Station.
Once we got up to ground level from Exit 6 we could see Seoul Tower in the distance.
All we had to do then was to walk straight forward (uphill), and then we saw the monument and the Namsan Oreumi elevator was right there!
The Namsan Oreumi elevator would go up and down Namsan ("the south mountain") where Seoul Tower is. The elevator is made of glass so visitors can see the beautiful views of the city, as well as the mountain areas.
Inside the elevator and going up the mountain.