Thanks to a loophole in property ownership, this alleyway has become a cacophonous street gallery.

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

The world's largest Holstein cow.

This replica of an 8th century burial ship actually sailed to Norway before returning home to Minnesota.

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This small archipelago in northern Lake Superior was formed by a massive meteorite impact 450 million years ago.

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

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

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

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

When waves crash onto this section of beach, the rocks sing a song.

This institution celebrates the happy accidents of uncommon sticktoitiveness.

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.

Home to part of the world’s largest private collection of original manuscripts and documents.

These Great Lakes sea caves accessible by boat in the summer turn into temples of ice reachable by foot in the winter.

A larger-than-life version of the hat beloved by hunters, outdoorsmen, and Holden Caulfield.

Large one-man sculpture park in Michigan.

This little barrel-shaped cottage by Lake Superior was once a cartoonist's summer retreat.

This Native American cemetery features decades-old spirit house hidden behind pine trees and moss.

A neutrino detector built into the largest man-made underground cavity in the world.

A long-abandoned provincial prison left to crumble in the frigid air of Ontario.

This "railway" for boats continues a waterway over a road.

Within the church are the relics of the martyrs St. Jean de Brébeuf, St. Gabriel Lalemant, and St. Charles Garnier.

These strikingly barren, rolling red hills were caused by bad farming practices.