We've featured a variety of offices here, but this is definitely the first time we've featured an office built into a rock-climbing wall.
Lifehacker reader Scott Mulder works at Tree Fort Bikes—a sport and bike shop in Ypsilanti, MI—and has quite a novel office. His workspace is inside the top of their climbing wall and has a distinctly tree-fort like appearance.
Inside his climbing-wall fortress he has a desk made of particle board that has been sanded and sealed with polyurethane to give it a glossy surface you wouldn't expect from the kind of material it's made out of.
There is a shelf for his computer tower, another for some office supplies, and even a bed for one of the Tree Fort dogs, Dag Dag.
The Climbing-Wall Fortress [Lifehacker Workspace Show and Tell Pool]