Abstract: The present invention pertains to a wall safe designed such that it may be conveniently built into and secured to any new or existing structure such as a building, vehicle, or the like. The wall safe comprises a top, bottom, and four side walls, one of which has a door providing access to the interior. The door is movably secured to the side wall near the top of the opening by means of concealed hinges at opposite sides thereof. Additionally, the safe is provided with a removable shelf which appears to be the bottom of the safe but conceals a secret compartment therebelow. In one embodiment, the wall safe is sized to fit between existing or new studs or joints of a conventional wood frame building. In another embodiment, the invention is provided with a flanged bottom portion to aid in embedding the safe in a concrete floor or the like.In yet another embodiment, several of the wall safes may be assembled or stacked together to form a table like structure suitable for hotel lobbies or the like.