This is public art (and science). Like all good art it’s unique and thought provoking. It sits in one of the less visited corners of Magnuson Park (the old Sand Point Naval Air Station) in Seattle.
Briefly… the artist, Perri Lynch, crafted 12 limestone pillars along a 1- kilometer line called the Sand Point Calibration Baseline where surveyors’ measure, test, and calibrate their equipment. There are about a dozen such baselines in the State of Washington, but some local surveyors worried that this one would be destroyed by unknowing visitors. They lobbied for public art monument to raise awareness and prevent its accidental destruction.