Source: http://gizmodo.com/a-hotel-full-of-secret-rooms-invites-an-epic-game-of-hi-718156776
The Suitcase House Hotel is the perfect place to hide out. It has an entire network of rooms hidden beneath the floorboards, like an architectural Swiss Army knife. Check out these amazing hiding places—or, as the hotel probably refers to them, the places where you brush your teeth and sleep.
Created by Hong Kong-based architect Gary Chang, the beautiful fortress is nestled in the hills near the Great Wall. The long, narrow Chinese hotel uses space in really interesting, unconventional way, with a series of undetectable compartments hidden under notched floorboards that open to reveal different programs. Pull up one of the convertible pieces, and you'll find sinks and a bathroom. Remove another, and there's a library and a study. Another conceals a sleeping chamber, and another, a sauna. These pneumatically-assisted panels make the space infinitely configurable for events and lodgings. This diagram shows the different ways in which you could change up the suitcase house:
So while your conventional hotel uses regular old vertical doors as entrances to rooms, the Suitcase House has its doors located horizontally on the floor. It would definitely make for a competitive game of hide-and-seek. [DesignBoom]