This giant 200-year-old ginkgo is one of the largest in the United States.

A former 19th-century tavern, famous for its peach brandy and honey concoction.

The world's longest known cave system.

The farm where one of America's greatest leaders was raised is now a well-appointed landmark.

One man's vision and a labor of love of many.

Even with only two residents and one building, this tiny Illinois town is famous for its burgers.

The world's largest collection of the world's largest objects is in one small Illinois town.

The legacy of an unsolved, gruesome murder rests beneath the spans of this historic bridge.

This folk art wall claims to be the world's one and only memorial to the bygone age of hippies.

This posh mansion began as a family's estate and ended as the site of a murder ripped from the pages of a pulp novel.

This picturesque cliffside beacon no longer calls to sailors but shines once a year in honor of a famous shipwreck.

Half of a waterfall goes into the river while the other half seems to disappear.

A giant granite cross remembers missionary Father Frederic Baraga, and his safe passage across an angry Lake Superior.

Over 140 boathouses built by miners from the Soudan Iron Mine in the early 20th century overlook Stuntz Bay on Lake Vermilion.

This 25-foot-tall statue was built as a protest to a property dispute.

Home to a 26-foot-tall statue of an American icon.

A garden full of metal sculptures that celebrate the double bass.

The largest Walleye statue in the world calls this Minnesota town home.

Part of a secret 1970s nuclear defense program is now open to the public.

The remnants of an early American attempt at missile defense.

This park straddling the United States-Canadian border has been a symbol of peace since 1932.

A rim-made reptile in North Dakota.

The world's tallest turtle riding the world's largest snowmobile.

This museum is a full-size replica of an original church constructed during the 13th-century.