Mill Creek Canyon Park, Washington

In this park, east of Kent, is a series of earthworks created by the earth artist Herbert Bayer in 1982. The work consists of a group of grass-covered earthen berms, shaped into large, orderly rings and circular mounds, spread over 2.5 acres of a larger 96-acre city park. But the site is also a functional stormwater retention basin, and the works become submerged during storm run-off. In 2008, the site received Kent's first City Landmark Nomination.