Jencks switched to landscape design as a site for symbolic exploration when Maggie asked Charles to design in the family home and garden in Scotland. The result in 2003 was the "Garden of Cosmic Speculation", a series of twenty areas designed around various metaphors such as the DNA garden, Quark Walk, Fractal terrace and Comet Bridge. Further hybrid landforms and symbolic sculptures were built in Edinburgh, Milan, Long Island, New York, Cambridge, Suncheon, South Korea (with Lily Jencks), and other countries, some works from which were published in "The Universe in The Landscape", 2011.