I'll throw in my two cents for Wisconsin:
-- The four Kohler-area courses, including Whistling Straits, which has hosted a major and is hosting a Ryder Cup in the future.
-- Some very well-regarded high-end courses, such as Erin Hills, the Bull at Sheboygan Falls, and the Bog.
-- Dye's Big Fish, near the muskie museum in Hayward, well-regarded by some regular GCA posters, and Lehman's Troy Burne, overlooking the Mississippi River near Hudson.
-- Milwaukee's Brown Deer, home to a PGA tour stop, and a true muni (and Brown County, another solid muni visited by gun-packing GCA posters near Lambeau...)
-- Some interesting museum pieces, virtually untouched over the years, such as Quit-Qui-Oc, Peninsula State Park in Door County, Plum Lake up north and Eagle Springs.
-- And, finally, the incomparable Lawsonia Links.
A good mix, and rare for a state -- although there are several very good private courses in Wisconsin (Milwaukee CC, Blue Mound for starters), a strong majority of Wisconsin's top courses are public-access.