America's silhouette includes 100 square miles of wilderness jutting into Canada thanks to an old mapmaking error.

A collection of pianos and more guaranteed to delight anyone interested in music history.

Eight "Guardians of Health" protect this art deco water tower from pollutants and bacteria.

One of two giant blue cockerel statues erected with an intentional double meaning.

This 1960s kinetic artwork has been restored and is once again whirling away in downtown Minneapolis.

14th century Norse artifacts in Northwestern Minnesota could have proved a Viking landing before Columbus.

Come for the giant taxidermy lion, stay for the knick knacks at this Minneapolis curiosity shop.

A 115-year-old restored German dining hall awaits those who venture beneath the Minnesota State Capitol.

17,400 lbs., 12 feet in diameter, and 29 years in the making.

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

A whimsical sensor instrument for Minneapolitans to play on their walks to work.

These curious caverns have been home to mushrooms, gangsters, and disco.

The property contains 37 preserved animal effigy mounds constructed by Native Americans between 800-1100.

In 1953, a group of Wisconsin high school students helped build a hospital by collecting over a million pennies.

Built in 1933, this unique ballroom is nicknamed the "floating dance floor."

This odd-shaped relic from the 1964 New York World's Fair found its way back home to Wisconsin.

Small-town museum dedicated to outer space ... and bicycles.

A collection of 1,300 accordions of all shapes and sizes displayed in chronological order.

Before he was America’s most famous preservationist, John Muir was an ingenious mechanical inventor.

A group of artists transformed this desolate city alleyway into an outdoor gallery of street art.

Commemorating the planting of trees by the Atlanta chapter of the Concatenated Order of Hoo-Hoo.

It’s all about the Benjamins at this Atlanta museum with interactive exhibits.

After being inoperative for over half a century, this elaborate fountain in Atlanta's oldest park was restored to its former glory.

Unruly residents were housed in this one-person cell until the Black Maria arrived.