Hi, I've found a Woodlands Mansion and cleared it out of mobs. Now I'm on a hunt for secret rooms but Ican't find any. Are they found with levers and or buttons? Are there any in the foundation of the building?
I actually explored my first mansion yesterday and I did notice that there was a cut-off space on the top floor. It had windows but was otherwise completely empty. There was also a secretish passage that lead to a chest which was kind of weird. As for levers or buttons, they'd have to be pretty well-kept secrets to be absent from the wiki.
That secret room in your screenshot has two chests hidden on top of the room.