Mammoth Cave National Park
U.S. national park in Kentucky.
Each edition grades its towns against each other only.

Around 661K people visit Mammoth Cave National Park each year. Nothing on our list is inside Hartford; the 3 places to visit are within 40 miles. The commonest are a national park, a museum and a garden. If you have a day, head to United States Bullion Depository, 59 mi away.

U.S. national park in Kentucky.
The towns around it, and where to stay →
The map puts most of the 3 to the southeast.
Orange: Hartford. Numbers: the best-known places, matching the list below. © OpenStreetMap contributors
Here are the 20 places within 60 miles.
U.S. national park in Kentucky.
1942 LST-1-class tank landing ship, later converted to a museum ship.
Indiana, a Native American complex of earthworks and a National Historic Landmark.
Monument at Davis's birthplace in northern Kentucky.
United States historic place in Spencer County, Indiana.
Museum in Evansville, Indiana.
Former railway station in Bowling Green, Kentucky.
Church building in Kentucky, United States of America.
Botanical garden in Owensboro, Kentucky.
Research farm and botanical garden in Princeton, Kentucky.
Ranked by how many people look them up, so the famous places lead and the local favorites follow.
Parks and trails in Hartford → · Hartford’s history →
Mammoth Cave National Park: Willis Thomas Lee, Public domain · United States Bullion Depository: Work permit Original author=Cliff, CC BY-SA 4.0 · USS LST-325: Wikideas1, CC0 · Holiday World & Splashin' Safari: Holiday World & Splashin' Safari, Public domain · Angel Mounds: Heironymous Rowe (talk), CC BY-SA 3.0 · National Corvette Museum: Jonrev at English Wikipedia, Public domain · Jefferson Davis State Historic Site: Bbadgett, CC BY-SA 3.0 · Ford Center: Nyttend, Public domain · Lincoln Boyhood National Memorial: Rene Sturgell, CC BY-SA 3.0 · Lost River Cave: Nyttend, Public domain · General George Patton Museum of Leadership: Yellowute at English Wikipedia, Public domain · Beech Bend Park: Acdixon, CC0 · Mesker Park Zoo and Botanic Garden: Randella (talk), CC BY 3.0 · Reitz Home Museum: Nyttend, Public domain · Evansville Museum of Arts, History and Science: Nyttend, Public domain · The Historic Railpark and Train Museum: Bedford at en.wikipedia, Public domain · South Union Shaker Center House and Preservatory: E.R. Pearson, Public domain · Western Kentucky Botanical Garden: Steve Ryan from Groveland, California, United States, CC BY-SA 2.0 · University of Kentucky Research and Education Center Botanical Garden: Dlove4000, CC BY-SA 3.0