20 mi from Cambridge, Camp Randall Stadium leads the list

Camp Randall Stadium: Carol M. Highsmith, Public domain · Fiserv Forum: Michael Barera, CC BY-SA 4.0 · Milwaukee Art Museum: Michael Hicks (Mulad), CC BY 2.0 · Illinois Railway Museum: The original uploader was Slambo at English Wikipedia., CC BY-SA 2.0 · Ice Age Trail: MDuchek, CC BY-SA 3.0 · UW–Milwaukee Panther Arena: Shadowlink1014, Public domain · Dells of the Wisconsin River: atramos, CC BY 2.0 · Alpine Valley Music Theatre: chad davis, CC BY-SA 2.0 · Aztalan State Park: Joshua Mayer - Flickr user wackybadger, CC BY-SA 2.0 · Kohl Center: Pbrown111 at English Wikipedia, Public domain · Devil's Lake State Park: CrispAir at en.wikipedia, CC BY 3.0 · Harley-Davidson Museum: Dori, CC BY-SA 3.0 us · Nature & Culture Museum of Wisconsin: The original uploader was Sulfur at English Wikipedia., CC BY-SA 3.0 · BMO Center: SimLibrarian, CC0 · Milwaukee County Zoo: Awkwafaba, CC BY-SA 3.0 · Mitchell Park Horticultural Conservatory: Sulfur (Talk / contribs), CC BY-SA 3.0 · Blue Mound State Park: Mailseth at English Wikipedia, CC BY-SA 3.0 · Mt. Olympus Water & Theme Park: User Royalbroil on en.wikipedia, CC BY-SA 2.5 · Kettle Moraine State Forest: self, CC BY-SA 2.5 · Henry Vilas Zoo: Corey Coyle, CC BY 3.0 · Marcus Amphitheater: Ryan Dickey from Evanston, IL / Chicago, United States, CC BY 2.0 · Circus World Museum: Jonathunder, GFDL 1.2 · National Mustard Museum: Corey Coyle, CC BY 3.0 · Olbrich Botanical Gardens: Chief-O at English Wikipedia, Public domain · Little Norway, Wisconsin: Richie Diesterheft, CC BY 2.0 · Overture Center for the Arts: Chief-O of English Wikipedia, Public domain · Little Amerricka: Dklompmaker, CC BY-SA 3.0 · Riverside Theatre: Michael Barera, CC BY-SA 4.0 · Elvehjem Museum of Art: James Steakley, CC BY-SA 3.0 · University of Wisconsin–Madison Arboretum: Yinan Chen, Public Domain · Anderson Japanese Gardens: M. Readey, CC BY-SA 3.0 · Old World Wisconsin: Bridget Bannon, CC BY-SA 3.0 · Discovery World: Dori, CC BY-SA 3.0 us · International Crane Foundation: Rod from Livonia, Michigan, CC BY 2.0 · Woodstock Opera House: HrAtsuo, CC0 · Grohmann Museum: Michael Barera, CC BY-SA 4.0 · National Bobblehead Hall of Fame and Museum: Adam Moss from East Amherst, New York, United States, CC BY-SA 2.0 · Charles Allis Art Museum: Freekee at English Wikipedia, Public domain · Lake Park: https://www.flickr.com/people/jhtaylor/, CC BY 2.0 · Wisconsin Historical Museum: Daderot, CC0 · Boerner Botanical Gardens: Photo was taken in the Summer of 2006 by Douglas Tyler Spencer., Public domain · Juneau Park: Michael Barera, CC BY-SA 4.0 · Patrick and Beatrice Haggerty Museum of Art: Royalbroil, CC BY-SA 3.0 · Dretzka Park: Lightburst, CC BY-SA 4.0 · James Madison Park: James Steakley, CC BY-SA 3.0 · Klehm Arboretum and Botanic Garden: KlehmArboretum, CC BY-SA 4.0 · Wisconsin Veterans Museum: Michael Barera, CC BY-SA 4.0 · Allen Centennial Gardens: James Steakley, CC BY-SA 3.0 · Angel Museum: Unknown, Public domain · Don Opel Arboretum: Cillas, CC BY-SA 4.0 · Mitchell Gallery of Flight: SuperDalio, CC BY-SA 4.0 · Oak Creek Parkway: Bluebarb11, CC BY-SA 3.0 · Rotary Botanical Gardens: Chief-O (talk)., Public domain · Wehr Nature Center: Lightburst, CC BY-SA 4.0 · Sisson's Peony Gardens: Royalbroil, CC BY-SA 3.0