Carbon nanotube junctions have been created using the tip of an atomic force microscope. Individual single-walled nanotubes have been manipulated on a SiO2 surface to produce buckles, bends, and crossings, and also to unravel a nanotube "crop circle" (see Figure), the arrows indicating the path the AFM tip has traveled in each manipulation step. The creation of such artificial junctions and bends opens a route to nanotube transport studies.