They may not look the part, but the Carbon Fiber Stones are actually seats. I know what you're thinking: they look like they belong in an art museum, (or something to that effect). And I agree, but seriously, these works of art are for your bottom, not your eyes.
Designed by Peter Donders, the Carbon Fiber Stones are, you got it, made from carbon fibers. They are limited edition creations in which only ten pieces of each design will be made. I wonder what the price tag of these extremely exclusive benches are.