which is the smallest national park in the world
Mill Ends Park Mill Ends Park (sometimes mistakenly called Mill's End Park)[1] is a tiny urban park located in the median strip of SW Naito Parkway, approaching esplanade along the Willamette River near SW Taylor Street in downtown Portland, Oregon, United States. The park is a small circle 2 ft (0.61 m) across, with a total area of 452 sq in (0.292 m2). It is the smallest park in the world, according to the Guinness Book of Records, which first granted it this recognition in 1971.[2]