hidden doors, secret rooms, and the hardware that makes it possible; fine homebuilding
Hidden door hinges.
360 degree swing hinge door. Awesome for small spaces and people who like to vacuum every nook and cranny!
How To Build A Secret Passageway With The Hidden Door Hinge System ... LOVE hidden passageways!
Tectus Hinge installation photo showing concealed TE540 Concealed hinge
Hidden door Hinge System - Cabinet And Furniture Hinges - Amazon.com
DIY Hidden Door Hinge System
Flush-Mount Murphy Door Hardware Kit - Hardware For bedroom door at bottom of master stairs.
Secret door - great for the rooms you dont want people to go into.. makes me think of scooby doo, but still awesome!
HIDDEN CABINET DOOR HINGES - Cabinet Storage