These Bookcases Aren't What They Appear To Be

(Image credit: Fran Parente | Yatzer) You can perhaps blame it on having watched too much Scooby-Doo as a kid, but the idea of secret passages fascinates me. So I love it when architects incorporate a little mystery into their designs--secret rooms, hidden doors, or, in this case, a whole wall of bookcases that turns out to not be a wall at all.