The Third Landscape  

1. manifesto written by Gilles Clément, French landscape architect, botanist, entomologist and writer.

2. designates the sum of the space left over by man to landscape evolution – to nature alone. Included in this category are left behind urban or rural sites, transitional spaces, neglected land, swamps, moors, peat bogs, but also roadsides, shores, railroad embankments, etc.