The Doctor was buzzing his sonic screwdriver along the wall and suddenly dug his fingernails into the wall, pulling off a hidden panel. "How about a holographic switchboard?" he said with a satisfied smile, throwing two of the switches.

The whole room faded, showing what it really was. It was the same room, only not as pristine and white. The hidden mechanism that had beamed them here was above them, a sort of electronic shower-head looking device. The walls had faded to a black with bits of glowing parts in it like the inside of a computer.
And at one end of the room was an open doorway that hadn't been visible before.