This modern wall panel is actually a hidden door that’s completely concealed when closed.
This secret bookcase door adds an interesting flair to a home office.
This secret bookcase door conceals a hidden room. The fact that it’s at the end of a hallway gives it away, but only to those who are paying attention.
This secret bookcase door adds novelty and security to the residence.
This moving bookcase opens up to reveal a secret door on the upper level of this house.
These bookcases are mounted on track to fold in the middle and reveal a secret passage.
This secret trap door opens upward and can be locked from the outside.
This trap door leads to a secret room under Castle Menzies.
Many times stages include concealed trap doors like this to allow actors and actresses to move from one place to another.
This combination lock is made from wood and used to demonstrate how locks work.