Secret passageways, trap doors and hidden rooms were standard in some of your favorite mystery series – like "Scooby-Doo" or Nancy Drew. You probably saw them coming. But in real-life, you'd never ...

Is there anything more magical and mysterious than a hidden doorway? It's the epitome of luxury to install one at home and will completely dazzle your guests—even if it hides nothing more than a spare ...

Secret passageways, trap doors and hidden rooms were standard in some of your favorite mystery series – like "Scooby-Doo" or Nancy Drew. You probably saw them coming. But in real-life, you'd never ...

Homeowners are adding hidden doors and rooms to foil burglars, eke out extra storage space and prepare for Armageddon. Bookcase-fronted doors leading to hidden stairs at the Morgan Library & Museum in ...

Hiding behind secret doors and bookshelves, using puzzles and passwords to help patrons find the entrance, or even cloistering underneath the city itself. Hidden down long, dark hallways and ...