"Parabola" is an interactive, augmented reality mural by Heavy Projects. The mural comprises a fractal pattern background and a digital sculpture built by impossibly interlocking and twisted parabolas that also function as a chair. Fractals are useful in modeling structures and describe partly random or chaotic phenomena such as fluid turbulence that often expresses itself in parabolic shapes. A ubiquitous and foundational design form, the parabola is found in everything from graphic design to product design to the sketches of DaVinci to natural forms. Users can "question" what they see by interacting and investigation a form that simultaneously looks familiar and strange, metallic and organic. Additionally, designers can use the AR experience as a form of in situ product interaction by placing the chair in different parts of the virtual room, changing its colors, and changing the colors of the wall fractal design and the lighting.