This article page is reserved for talking about lockable strongboxes, usually called safes, as used in interactive fiction. For other meanings of "Safe", see Safe (disambiguation).
Wall safes are often hidden behind paintings hung on the wall, particularly behind grim-looking portraits of people who own (or used to own) the mansion that the PC is exploring.
Safes may be locked either with a key or with a combination dial lock.
If you can't unlock a safe by normal means, consider using an explosive to force it open.