Cultural landscapes are part of our national heritage. These special places – from gardens, parks, and thousand-acre rural landscapes to quaint homesteads with small front yards – reveal aspects of our country's origin and development through their forms, features, and history of use.

The evolutionary nature of landscapes makes them highly vulnerable to misuse and neglect: many places in which we live, work, and play change in ways that often threaten their character. The story of these places is the focus of the Cultural Landscape Foundation's (CLF) list of Landslide landscapes. Every other year TCLF will issue a list of threatened landscapes. This year, the focus is on masterworks of landscape architecture designed in the past 250 years.