Miraculous tree that seems to sprout out of solid rock.

It is the only marker for one of the most famous hate crimes in American history. There are no other memorials for him in the entire state.

An experimental, automotive replica of Stonehenge.

Just a man taking his prehistoric pet for a stroll.

Other-worldly rock formations and ancient fossils abound in this unique stretch of Nebraska badlands.

The world's largest mountain carving could fit all of Mount Rushmore inside it many times over.

Hidden behind Lincoln's head is a 70-foot-long chamber containing enamel plates documenting American history, sealed in a teakwood box in a titanium vault.

This towering wooden Sasquatch was carved with a chainsaw.

A waterfall 600 ft. inside a mountain, once the bane of gold miners, is now a spectacle of nature.

This simple badlands butte is the highest point in North Dakota and may be the only high point to charge admission.

The ruins of Theodore Roosevelt's beloved ranch stand in a forgotten corner of a national park named after him.

This monument remembers one of the manliest men of the frontier who fought a grizzly before dragging himself 200 miles to safety.

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

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

The center of the only hemisphere that awards visitors with a commemorative coin.

An abandoned fish-shaped drive-in gets a second life as a restaurant.

A mapping error in the 19th century made loggers think this section of the forest was underwater.

Home to a vast collection of The Wizard of Oz memorabilia and the site of an infamous theft.

Duluth mineral magnates built this charming art deco lodge to be their private clubhouse.

This tiny Minnesota city tried to secede from the Union as a last-ditch effort to fix its crumbling water system.

Minnesota's highest point is a scenic vista marked by a plaque and armies of mosquitoes.

Minnesota's oldest and deepest mine is now an underground physics laboratory.

The famed architect designed this Minnesota gas station of the future with a lookout tower.

A memorial to the late U.S. Senator Paul Wellstone, who died at this location, along with seven others, in a plane crash in 2002.