Where are all of the pedestals?
Solution 1:
I was missing only one pedestal. The four pedestals, including the ones I mentioned in my question, are:
- Two in the main room
- One in the gallery
- In the Alpine Skyway room, there is a door with a picture of a laboratory beaker on it. Just inside this door is a strange purple wall. Use the Dweller mask to get past it and find the final pedestal.