Peoria, Illinois has one too and claims the "world's most complete large-scale model of the Solar System. The scale factor is 99,000,000:1, covering 6,000 square miles of Central Illinois."[0] and you can "become a part of the world's most complete large scale model of the Solar System by purchasing an Unnamed Comet Plaque in the Peoria Riverfront Museum Store. Unnamed comet plaques are located on all seven continents, stretching as far north as Barrow, Alaska, and as far south as South Pole Station, Antarctica."[1]
[0] https://www.peoriariverfrontmuseum.org/dome-planetarium/comm...
[1] https://www.peoriariverfrontmuseum.org/dome-planetarium/comm...