What's in a name?

There's wit and whimsy in the naming of a national lab’s conference rooms. This summer, The New York Times' Opinionator blog posted a photo of an ordinary, fluorescent-lit hallway, indistinct apart from one feature: a placard proclaiming "Dungeon" in tall capital letters. As part of the blog's "summer game" series, readers were asked to guess the context of the photo.